Loctite 135479 User guide

Brand: Loctite

Model: 135479

Type: User guide



“When, Where & How” to Use

LOCTITE

MaintenanceProducts

“Do It Right” User’s Guide



CONTENTS

The primary function of this User’s Guide is to help you, the

maintenance professional, with the proper selection and use of

LOCTITE

products. A wide variety of preventive maintenance, as well

as repair techniques, is explained in step-by-step detail. Consider this a

supplemental service manual for every piece of equipment in your plant.

Our goal is to make it easier for you to use our products, to your benefit,

for faster repair times, reduced downtime and extended equipment life.

Additional information on these products, as well as others, is available

by contacting your local LOCTITE

Adhesives and Sealants Specialist at

the telephone number listed on the back cover of this guide.

INTRODUCTION Introduction to Anaerobic Adhesives and Sealants 

Why Use a Primer? 

THREADLOCKING Thru Holes (Bolts and Nuts) 

Blind Holes (Cap Screws, etc.) 

Blind Holes (Studs, etc.) 

Adjustment Screws 

Pre-Assembled Fasteners 

Threadlocker Quick Selector 

THREAD REPAIR Stripped Thread Repair 

THREAD SEALING Standard Fittings – Pipes, Hydraulic or Air 

Pipe Unions 

Compression Fittings 

Flared/Swaged Fittings 

Hose Ends – Air & Hydraulic 

Thread Sealant Quick Selector 

CONTENTS 





POROSITY SEALING Existing Weld Porosities and Castings 

Sealing New Welds – Preventive Maintenance 

FORM-IN-PLACE Sealing Cast Rigid Flanges 

GASKETING Gasketing Quick Selector 

GASKET DRESSING Sealed Flanges 

FORM-IN-PLACE Stamped or Sheet Metal Flanges 

SILICONES

STRENGTHEN KEYED Standard Duty 

ASSEMBLIES Heavy Duty 

Repairing Badly Wallowed Keyway 

SHAFT MOUNTED Repairing Badly Worn Shaft 

ASSEMBLIES Slip Fit – Light/Heavy Duty 

Press Fit 

Shrink Fit 

HOUSED COMPONENTS

Slip Fit 

Repairing Badly Worn Housing 

Component Centering 

Sealing/Retaining – Metallic Seal 

Retaining Compound Quick Selector 

DISASSEMBLY Threadlocking, Thread Sealing & Retaining 

Gasketing 

SHAFT REPAIR General Information 

BONDING Introduction to Bonding Adhesives 

Bonding Assembly 

Surface Preparation 

Adhesive Quick Selector 

O-Ring Making 

Bonding Metal Label 

Filling Cracks 

Structural Bonding 

RUSTPROOFING LOCTITE

Rust Treatment 

CLEANING General Purpose Parts Cleaning 

TROUBLESHOOTING Checklist 

ORDERING Product Listing/Order Information 

CONTENTS 



WHY USE A PRIMER?

. Primers activate inactive surfaces which are not required

with primerless products.

. Primers speed cure times for faster return to service.

. Primers speed curing through larger gaps and deep threads.

. Primers substantially speed cure times on cold parts.

. Primers act as cleaning agents.

Active surfaces (primer is optional): Brass, copper, bronze, iron, soft steel, nickel.

Inactive surfaces (primer is required): Pure Aluminum, stainless steel,

magnesium, zinc, black oxide, cadmium, titanium, others.

Threadlocking

Thread Sealing

Gasketing Retaining

INTRODUCTION

Anaerobic adhesives and sealants were developed by the founder of

LOCTITE Corporation, now Henkel Corporation, in  and, since then, they

have significantly evolved to meet the highest requirements of equipment

manufacturers, maintenance and overhaul.

Anaerobic adhesives and sealants are resins that convert from liquid to a tough

structural solid in the absence of air and the presence of metal. The primary

functions of anaerobic resins are:

Each one of these functions is based upon control of five major variables: strength,

viscosity, adhesion, flexibility and temperature resistance. These five parameters

give anaerobics users considerable latitude in adjusting properties for optimum

performance in specific application areas.

Another variable that should be considered is the substrate in which the adhesive

will be applied. For certain substrates or other special requirements, the use of

primer is recommended.

INTRODUCTION TO ANAEROBIC ADHESIVES AND SEALANTS



BLIND HOLES (CAP SCREWS, ETC.)

. Clean all threads (bolt and nut) with LOCTITE

SF 

™

ODC-Free Cleaner

&Degreaser.

. If necessary, spray all threads with LOCTITE

SF 

™

Primer. Allow to dry.

. Select the proper strength LOCTITE

threadlocker.

. Insert the bolt into thru hole assembly.

. Apply several drops of liquid threadlocker onto the bolt at the targeted tightened

nut engagement area or, when using the stick product, completely fill the root

of the threads at the area of engagement.

. Assemble and tighten the nut as usual.

. Clean all threads (bolt and hole) with LOCTITE

SF 

™

ODC-Free Cleaner

&Degreaser.

. If necessary, spray (bolt and hole) with LOCTITE

SF 

™

Primer. Allow

seconds to dry.

. Select the proper strength LOCTITE

threadlocker.

. Squirt several drops down the sides of the female threads.

. Apply several drops to the bolt.

. Tighten as usual.

Note: Using LOCTITE

threadlockers will virtually eliminate stripped threads in

aluminum or magnesium housings caused by galvanic corrosion.

Onto

Threads

Onto

Threads

THREADLOCKING

THRU HOLES (BOLTS AND NUTS)

Apply Here

LIQUID AND SEMISOLIDS

LIQUID ONLY

Not

Here



BLIND HOLES (STUDS, ETC.)

THREADLOCKING

. Clean all threads (bolt and hole) with LOCTITE

SF 

™

ODC-Free

Cleaner & Degreaser.

. If necessary, spray all threads with LOCTITE

SF 

™

Primer. Allow to dry.

. Squirt several drops of LOCTITE



™

Threadlocker down the sides of the

femalethreads.

Note: Use LOCTITE



™

Threadlocker if the stud is over " diameter.

. Apply several drops of LOCTITE



™

Threadlocker onto stud threads.

. Install studs.

. Position cover, head, etc.

. Apply drops of LOCTITE



™

Threadlocker onto exposed threads.

. Tighten nuts as required.

. Adjust the screw to proper setting.

. Apply several drops of LOCTITE



™

or 

™

Threadlocker at the screw and

bodyjuncture.

. Avoid touching bottle tip to metal.

Note: • If re-adjustment is difficult, apply heat to the screw with a

soldering gun (°F).

• LOCTITE



™

Threadlocker is a weaker version of

LOCTITE



™

Threadlocker.

Plunger

Apply Here

Onto

Threads

Into

Hole

LOCTITE



™

LOCTITE



™

ADJUSTMENT SCREWS

LIQUID ONLY



PRE-ASSEMBLED FASTENERS

THREADLOCKING

. Clean bolts and nuts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Assemble components.

. Tighten nuts.

. Apply several drops of LOCTITE



™

or 

™

Threadlocker at the nut and

boltjuncture.

. Avoid touching bottle tip to metal.

Note: For preventive maintenance on existing equipment: RETIGHTEN

nuts and apply LOCTITE



™

or 

™

Threadlocker at the nut and

boltjuncture.

LOCTITE



™

or 

™

Here

Not Here

LOCTITE

BRAND THREADLOCKER QUICK SELECTOR

Use Strength Product Color

Small Screws Low MS

™

Purple

Nuts & Bolts Medium



™

/ 

™

Stick /

Blue



™

TAPE

Pre-Assembled Medium 

™

Green

Pre-Assembled Low 

™

Blue

Nuts & Bolts High 

™

/ 

™

Stick

Red

Studs (up to ") High 

™

Red

Studs (over ") High 

™

Red

LIQUID ONLY



STANDARD THREAD REPAIR

. Follow instructions on LOCTITE

PC 

™

package.

. If cover plate is used for bolt alignment:

(a) Apply release agent to mating faces around repair area.

(b) Use “waxed” paper or similar film between faces.

. A “jiggling/twisting” motion when initially inserting bolt improves the

threadconformation.

Note: NOT intended for engine stud repair.

SMALL HOLE/FINE THREAD REPAIR

OPTION . Drill out damaged hole to oversize, then follow STANDARD

THREADREPAIR.

OPTION . Apply LOCTITE

PC 

™

to screw and insert into

damaged hole. Clamp in place while product cures.

Release Agent

Stripped Threads

Tape

Step 1

LOCTITE

PC 



⁄ Fill Only

Release Agent

Step 2

LOCTITE

PC 

Cleaned Bolt

Step 3

Threadlocker

New

Threads

Cover

Plate

STRIPPED THREAD REPAIR

THREAD REPAIR

STUD INSTALLATION — PERMANENT (LIGHT DUTY)

. Use stud or cut “all thread” to desired length.

. Do NOT apply release agent to stud.

. Proceed as with STANDARD THREAD REPAIR.

. Allow  minutes to cure.

. Assemble as required.



. Disassemble and, if necessary, spray all components with LOCTITE

SF 

™

Primer. Allow to dry.

. Apply a thin coating of LOCTITE

Thread Sealant to union face.

. Apply a band of LOCTITE

Thread Sealant to male threads.

. Assemble parts snugly.

Sealant Band Sealant Band

Sealant Band Sealant Band Sealant Band

Sealant Coating (may be used for new or damaged seat)

PIPE UNIONS

. Clean parts of contamination. If necessary, spray LOCTITE

SF 

™

Primer onto threaded parts (male and female). Allow to dry.

Note: Primer is not required for brass parts.

. Apply a band of LOCTITE

Thread Sealant to male threads starting

one to two threads from end of pipe.

. Assemble parts snugly. Do not overtighten.

. If initial pressure exceeds  psi*, wait  minutes before pressurizing.

Note: •

For stainless steel components, use LOCTITE



™

Thread Sealant

LOCTITE



™

Pipe Sealant Stick.

• For general purpose thread sealing, use LOCTITE



™

Thread Sealant or LOCTITE



™

Pipe Sealant

Stick

• For fine filtration systems requiring zero contamination, use

LOCTITE



™

Thread Sealant for hydraulic/pneumatic fittings

or LOCTITE



™

Fast Cure Thread Sealant.

• For easier disassembly or large diameter fittings, use

LOCTITE



™

Thread Sealant.

• If using with sealing chemicals or strong acids/bases, refer to Fluid

Compatibility Chart (LT-).

• Do not use with systems containing oxygen or strong

oxidizers (chlorine).

• For PVC or ABS pipe, use LOCTITE

MR 

™

Plastic Pipe Sealant.

STANDARD FITTINGS – PIPES, HYDRAULIC, OR AIR

THREAD SEALING

* Depending on conditions



COMPRESSION FITTINGS

THREAD SEALING

. Slide fitting nut and ferrule back approximately



⁄" from end of tubing.

. If necessary, spray the entire assembly with LOCTITE

SF 

™

Primer.

Allow to dry.

Note: Primer is not required for brass parts.

. Apply a thin coating of LOCTITE

Thread Sealant to tubing where

ferrule will be located.

. Slide ferrule forward over LOCTITE

Thread Sealant coated tubing, then apply a

thin bead of LOCTITE

Thread Sealant coating to ferrule.

. Slide ferrule forward over LOCTITE

Thread Sealant coated tubing.

. Apply a small band of LOCTITE

Thread Sealant to male threads.

. Assemble and tighten normally.

Note: Do not use on plastic fittings or tubing.

. Disassemble and, if necessary, spray all components with LOCTITE

SF 

™

Primer. Allow to dry.

. Apply a thin coating of LOCTITE

Thread Sealant to fitting face.

. Apply a band of LOCTITE

Thread Sealant to male threads.

. Assemble parts snugly.

Sealant BandSealant Coating

Sealant Band

Sealant Coating (for new or damaged flare or seat)

FLARED/SWAGED FITTINGS

Sealant Band



HOSE ENDS – AIR & HYDRAULIC

THREAD SEALING

LOCTITE

BRAND THREAD SEALANT QUICK SELECTOR (TAPERED THREADS)

Instant Max. Steam Temp.

Application Product Primer Seal

Pressure Pressure

Range

Stainless Steel 

™

or 

™

SF 

™

 psi , psi  psi -°F to

and All Other Thread Sealant Primer ( hours) °F

Metal Fittings 

™

°F

Most Metal 

™

or 

™

SF 

™

 psi , psi n/a -°F to

Fittings Except Pipe Sealant Primer ( hours) °F

Stainless Steel

High Filtration/ 

™

or 

™

SF 

™

 psi , psi n/a -°F to

Zero Contamination

Thread Sealant – Primer ( min.) ( hours) °F

Systems

Hydraulic/Pneumatic

Stainless Steel 

™

Thread SF 

™

 psi , psi n/a -°F to

and All Other Sealant Primer ( hours) °F

Metal Fittings

(lower strength)

DO NOT USE THESE PRODUCTS ON OXYGEN OR STRONG OXIDIZERS.

FLUID COMPATIBILITY

. Refer to Fluid Compatibility Chart (LT-).

. Contact your local Industrial Distributor.

. Call Henkel Technical Information. See back cover for the Henkel Technical

Information number in your area.

. If necessary, spray adapter threads with LOCTITE

SF 

™

Primer.

Allow to dry.

. Insert barbed hose stem into hose I.D. with slight twisting motion.

. Install appropriate hose clamp.

. Apply a band of LOCTITE

Thread Sealant to male hose stem threads upon

installation or when adding accessory device. Tighten snugly.

Note: LOCTITE

Thread Sealant may attack synthetic rubber tubing.

Sealant Band



EXISTING WELD POROSITIES AND CASTINGS

POROSITY SEALING

. IMPORTANT! TAKE PROPER SAFETY PRECAUTIONS IF WORKING WITH

FLAMMABLE LIQUID TANKS. AVOID USE WITH COMPRESSIBLE GASSES.

. Wire brush to remove paint, rust, etc. from repair area.

. Clean repair area with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Apply localized heat to bring repair area to approximately °F.

. Allow repair area to cool to approximately °F.

. Brush or spray sealant on repair area.

Note: • Steel – Use LOCTITE



™

Threadlocker at °F.

• Aluminum/Stainless Steel – Use LOCTITE



™

Threadlocker

at °F.

Note: • Not recommended for “blowholes.”

• Maximum porosity sealed – .".

. Allow to cure for  minutes (High Pressure, above  psi —  hour).

. Clean with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser to remove

excess sealant. Do not grind.

. Paint as required.

Note: Casting repair uses same procedure.

LOCTITE



™

Weld Porosity

Weld Bead

Tank Wall

SEALING NEW WELDS — PREVENTIVE MAINTENANCE

. Remove all slag and scale while hot.

. Apply sealant when weld is °F and falling.

. Follow information above.



SEALING CAST RIGID FLANGES

FORM-IN-PLACE GASKETING

. Remove old gasketing material and other heavy contaminants with LOCTITE

Chisel

Gasket Remover. Use mechanical removal technique if required.

Note: Avoid grinding.

. Clean both flanges with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Spray LOCTITE

SF 

™

Primer on only one surface. Allow  to  minutes

todry.

. Apply a continuous bead of LOCTITE

Flange Sealant to the other surface.

Note: Circle all bolt holes with sealant, if appropriate.

. Mate Parts. Assemble and tighten as required.

Note: Immediate assembly not required; however, avoid delays

over  minutes.

. Allow to cure:

a. No pressure – immediate service

b. Low pressure (up to  psi) –  to  minutes

c. High pressure ( to  psi) –  hours

d. Extreme high pressure ( to  psi) –  hours

LOCTITE

BRAND GASKETING QUICK SELECTOR

Use Product Gap Fill Temp. Range

General 

™

Flange Sealant . mm -°F to °F

General 

™

Flange Sealant ." -°F to °F

High Temperature 

™

Flange Sealant ." -°F to °F

Continuous Bead

Circle Bolt Holes

Flat Flange

Raised Flange



SEALED FLANGES

GASKET DRESSING

LOCTITE



™

LOCTITE

Primer Only

LOCTITE



™

LOCTITE



™

LOCTITE

SF ™ Primer

and LOCTITE



™

Flange

Sealant

(

™

Stick)

. Remove old gasketing material and other heavy contaminants with LOCTITE

SF 

™

Paint Stripper. Use mechanical removal technique if required.

Note: Avoid grinding.

. Clean both flanges with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Spray LOCTITE

SF 

™

Primer on both flange faces and both sides of the

precut gasket. Allow  to  minutes to dry.

. Smear LOCTITE

Flange Sealant to both sides of precut gasket with a

cleanapplicator.

. Place coated gasket on flange surface and assemble parts immediately.

Note: • If cover bolts into blind holes (as above), apply LOCTITE



™

Threadlocker into hole and on threads. Tighten normally.

• If it is a thru hole bolt assembly, apply LOCTITE



™



™

Threadlocker Stick to bolt threads.

. Tighten normally.



STAMPED OR SHEET METAL FLANGES

FORM-IN-PLACE SILICONES

. Remove old gasketing material and other heavy contaminants with LOCTITE

SF 

™

Paint Stripper.

. Clean both flanges with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Apply a continuous bead of LOCTITE

SI 

™

Instant Gasket or LOCTITE

high performance silicones to sealing surface. Circle all bolt holes.

Note: • Use proper bead diameter to seal flange width and depth.

• Minimize excessive material “squeeze-out.”

. Assemble within  minutes by pressing together. Tighten as required.

. Clean up any excess or squeeze-out.

. Cure times will vary with temperature, humidity and gap. Typical full cure time

is  hours.

LOCTITE

Instant Gasket* LOCTITE



™

Blue

COLOR Black Blue

VISCOSITY, cP Paste Paste

GAP FILL



⁄"



⁄"

CURE METHOD Moisture/Oxime Moisture/Oxime

CURESPEED

Tack-Free  minutes  minutes

Full Cure  hours  hours

SERVICE TEMP. RANGE

Intermittent -°F to °F -°F to °F

-°C to °C -°C to °C

*LOCTITE

SI 5900™ Instant Gasket provides a low pressure instant seal (100 psi at zero gap).



STANDARD DUTY

STRENGTHEN KEYED ASSEMBLIES

ASSEMBLY

. Clean all parts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. If necessary, spray all parts (I.D. and O.D.) with LOCTITE

SF 

™

Primer.

. Apply LOCTITE



™

Retaining Compound coating into keyway and on key.

. Apply dab(s) of LOCTITE



™

Retaining Compound onto shaft opposite

keyway or evenly spaced around shaft.

. Assemble parts. Wipe off excess.

. Apply a dab of LOCTITE



™

Retaining Compound to set screw.

. Tighten set screw.

. Allow  to  minutes prior to service.

Note: • LOCTITE



™

Retaining Compound is NOT recommended for radial

gaps exceeding ." on shaft or keyway.

• See REPAIRING BADLY WALLOWED KEYWAY for procedure,

page .

LOCTITE



™

coating here

Dab LOCTITE



™

or 

™

here

Dab LOCTITE



™

here

DISASSEMBLY

. Tap component and key with hammer.

. Pull as usual.



HEAVY DUTY

STRENGTHEN KEYED ASSEMBLIES

ASSEMBLY

. Clean all parts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Apply a LOCTITE



™

Retaining Compound coating around shaft, into

keyway, and on key.

. Assemble parts. Wipe off excess.

. Apply a LOCTITE



™

Retaining Compound dab to screw.

. Tighten set screw.

. Allow  minutes prior to service.

Note: • If gap exceeds .", use LOCTITE

SF 

™

Primer on appropriate

area (shaft or keyway).

• LOCTITE



™

Retaining Compound is NOT recommended for radial

gaps exceeding ." on shaft or keyway.

• See REPAIRING BADLY WALLOWED KEYWAY for procedure, page .

LOCTITE



™

coating here

Dab LOCTITE



™

or 

™

here

DISASSEMBLY

. Tap component and key with hammer.

. If necessary, apply localized heat (°F for  minutes).

. Pull while hot.



REPAIRING BADLY WALLOWED KEYWAY

STRENGTHEN KEYED ASSEMBLIES

. Clean all parts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. If necessary, spray all parts with LOCTITE

SF 

™

Primer. Allow to dry.

. Apply a LOCTITE



™

Retaining Compound coating into keyway.

. Assemble as required using LOCTITE



™

Retaining Compound.

. Allow  to  minutes to cure.

Note: • LOCTITE



™

Retaining Compound is NOT recommended for lateral

gaps exceeding .".

• Higher strengths are obtained by NOT using LOCTITE

SF 

™

Primer with small (." to .") gaps, and allowing longer cure

(to hours).

LOCTITE



™

coated keyway



REPAIRING BADLY WORN SHAFT

SHAFT MOUNTED ASSEMBLIES

. Determine a minimum radial gap.

. Select and trim appropriate sleeve to allow component slip fit.

. Roughen sleeve O.D. with emery cloth.

. Clean all parts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Apply a LOCTITE



™

or LOCTITE



™

Retaining Compound coating around

the shaft.

. Install sleeve.

. Apply a coating of LOCTITE



™

Retaining Compound to sleeve O.D.

. Install component as required onto sleeved shaft.

. Allow  to  minutes to cure.

Note: • LOCTITE



™

Retaining Compound is NOT recommended for radial

gaps exceeding .".

• Higher strengths are obtained by NOT using LOCTITE

SF 

™

Primer with small (." to .") gaps, and allowing longer

cure ( to hours).

LOCTITE



™

Bearing

Sleeve

Shaft

LOCTITE



™

or 

™



SLIP FIT – LIGHT/HEAVY DUTY

SHAFT MOUNTED ASSEMBLIES

Bearing

Shaft

LOCTITE



™

or 

™

ORIGINAL

. Machine shaft to ." radial slip fit with  to  rms finish (second cut).

. Clean all parts with LOCTITE

SF 

™

ODC-Free Cleaner & Degreaser.

. Spray all parts (I.D. and O.D.) with LOCTITE

SF 

™

Primer.

Do NOT use primer for heavy duty applications.

. Apply a LOCTITE



™

Retaining Compound coating around shaft and

engagement area.

. Assemble parts with rotating motion.

. Wipe off excess.

. Allow  hours prior to service.

WORN SHAFT

Follow directions above except:

. Determine radial gap.

. If radial gap exceeds .", LOCTITE

SF 

™

Primer must be used.

. Take steps to maintain concentricity with large gaps.

. Larger gaps require longer cure times ( to  minutes).

. LOCTITE



™

Retaining Compound isNOT recommended for radial gaps

exceeding .".

. See procedure for REPAIRING BADLY WORN SHAFT, page .

Note: LOCTITE



™

Retaining Compound is very fast fixturing

( seconds or less) with LOCTITE

SF 

™

Primer.

MAXIMUM STRENGTH

. Same as above, except use LOCTITE



™

Retaining Compound with

LOCTITE

SF 

™

Primer or no primer.

. Allow  to  hours to cure.

MAXIMUM TEMPERATURE (°F continuous)

. Same as above, except use LOCTITE



™

Retaining Compound with

LOCTITE

SF 

™

Primer.

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Loctite 135479 User guide

Loctite 135479 User guide

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