Performance
• To obtain optimum performance from 3M
™
Stain Resistant
Additive SRC-220, some solvent may be required in the
formulation.* The purpose of the solvent is to act as a
coalescent or lm-forming agent. This helps the product
form a uniform protective lm over the substrate.
• VOC (volatile organic compound) regulations may inuence
the amount of solvent used in SRC-220 formulations.
• Because SRC-220 is a concentrate in water, it is not
compatible with hydrocarbon type solvents (e.g., hexane,
heptane, mineral spirits, etc.).
*Note: When using solvents, be sure to read and follow the
manufacturer’s precautions and directions for use.
SRC-220 Initial Prototype Formula
Suggestions
* Dipropylene Glycol mono-Methyl Ether or Dipropylene Glycol Dimethyl Ether
Objective: Prepare a 100g sample of SRC-220 in water/DPM
at 4% active solids.
Procedure: Weigh out 8.7g of DPM (or DMM) into a glass
or plastic container. While mixing, add SRC-220 concentrate
followed by DI water. Mix until uniform (10-15 minutes).
The final mixture should be slightly opaque to clear.
* Dipropylene Glycol mono-Methyl Ether or Dipropylene Glycol Dimethyl Ether
Objective: Prepare a 100g sample of SRC-220 at 2% active
solids.
Procedure: Weigh out 7.3g of DPM (or DMM) and 79.4g
of IPA into a glass or plastic container. While mixing, add the
SRC-220 concentrate. Mix until uniform (10-15 minutes).
The final mixture should be a clear solution.
Objective: Prepare a 100g sample of SRC-220 added to
existing coating at 1% active solids.
Procedure: Weigh out 93.3g of paint/sealer/varnish into a
glass or plastic container. While mixing, add the SRC-220
concentrate. Mix until uniform. Significant mixing may be
required if the original viscosity is high (20-30 minutes).
Final color will depend on the original coating.
SRC-220 Acrylic Prototype
Material % by Weight
SRC-220
30
Dowanol
™
DPM or Dowanol
™
DMM* 3
Rhoplex
™
CS-4000 10
Optional: Biocide and/or UV Stabilizer (0.1- 0.3)
DI Water qs to 100
* Dipropylene Glycol mono-Methyl Ether or Dipropylene Glycol Dimethyl Ether
Objective: Prepare a 100g sample of SRC-220 (4.5 % solids)
with acrylic resin.
Procedure: Weigh out 3g of DPM (or DMM) into a glass
or plastic container. While mixing, add the SRC-220
concentrate followed by Rhoplex CS-4000 (10g) and
DI water. Once homogeneous, add biocide and/or
UV stabilizer. Mix until uniform (10-15 minutes).
The final mixture should be chalky white.
For additional information about applications/formulations
involving SRC-220, contact AdMD technical service at
651-737-1254.
SRC-220 Water-Reducible Prototype
Material % by Weight
SRC-220
26.7
Dowanol
™
DPM or Dowanol
™
DMM* 8.7
DI Water qs to 100
SRC-220 Solvent-Based Prototype
Material % by Weight
SRC-220
13.3
Dowanol
™
DPM or Dowanol
™
DMM 7.3
Isopropyl Alcohol qs to 100
Prototype for Adding SRC-220 into an Existing Coating Formula
Material % by Weight
Paint – Sealer – Varnish
93.3
SRC-220 6.7