RHOPLEX® CL-204

Properties of Low Microfoam Emulsions (Coatings Applied at 100°F (38°C) and 25 Relative Humidity)

2. Measured at 70x magnification where bubbles are clearly visible.
3. Visual scale; 10 = best
Substrates: Stained cherry; unstained maple for cold check only
Sample preparation: conventional spray; 3 coats self-sealed; each coat 1 mil air dry; 30 minute air dry between coats.

• RHOPLEX® CL-204 Acrylic Emulsion is specifically engineered to minimize this microfoam entrapment by slowing the film-set process which occurs under extreme ambient conditions, while still maintaining acceptable early print resistance properties.
• RHOPLEX® CL-204 Acrylic Emulsion waterborne emulsion coatings achieve both of these formerly exclusive properties: low microfoam entrapment and early print resistance. Note that the ambient conditions during evaluation were among the harshest encountered for waterborne coatings, 100°F (38°C) and 25% relative humidity.
• Another benefit of RHOPLEXTM CL-204 Acrylic Emulsion is that the volatile organic content (VOC) of typically formulated clear topcoat lacquers is less than 2.5 pounds per gallon (less water) or 0.40 pounds of VOC per pound of polymer solids.

4. Not recommended as a coalescent with Rhoplex CL-204 but included for comparison purposes.

• Viscosity - The viscosity of the CL-204-1 formulation will increase with pH adjustment as well as with the addition of coalescing aids. The use of ACRYSOL® RM-825 Rheology Modifier is recommended for further viscosity adjustment.
• Flatting Agents - The below figure demonstrates the flatting efficiency of Degussa TS-100 matting agent or Syloid 7000 silica when added at 7% on emulsion solids. Either flatting agent can be used depending on the amount of gloss reduction desired. Coatings based on RHOPLEX® CL-204 Acrylic Emulsion maintain excellent clarity with both of these flatting agents.

Gloss of RHOPLEX® CL-204 Acrylic Emulsion Coatings with Flatting Agents (7% on Emulsion Solids)

• Wetting Agents - To prevent “picture framing” and improve wetting, use Surfynol 104 DPM surfactant at 0.5-1% on formulation solids. Wetting agent should be used sparingly because they can detract from the efficiency of RHOPLEX® CL-204 Acrylic Emulsion in preventing microfoam entrapment.
• Defoamers - Tego Foamex 805 defoamer at 1-2% on polymer solids is recommended for use with RHOPLEX® CL-204 Acrylic Emulsion. For best results, add defoamers after coalescents and under good agitation.
• Mar Aids - The addition of silicone-based mar aids will improve the slip and mar resistance of formulations based on RHOPLEX® CL-204 Acrylic Emulsion. Tego Glide 410 additive should be added at 1-2% solids on resin solids to impart mar and slip resistance. For best results, Tego Glide 410 additive should be reduced to 50% solids with an appropriate solvent (e.g., dipropylene glycol monomethyl ether) for ease of incorporation.
• Waxes - Wax additives can impart mar, slip, and water resistance to the finished coating. Emulsified waxes with the smallest particle size are recommended for clarity. Powdered waxes impart haze to the finished coating due to their large particle size. Michemlube 39235 emulsion is recommended for use in RHOPLEX® CL-204 Acrylic Emulsion formulations.

• Keep combustible and/or flammable products and their vapors away from heat, sparks, flames and other sources of ignition including static discharge. Processing or operating at temperatures near or above product flashpoint may pose a fire hazard. Use appropriate grounding and bonding techniques to manage static discharge hazards.
• Failure to maintain proper volume level when using immersion heaters can expose tank and solution to excessive heat resulting in a possible combustion hazard, particularly when plastic tanks are used.
• Empty containers may contain hazardous residues. This material and its container must be disposed in a safe and legal manner.

Store products in tightly closed original containers at temperatures recommended on the product label.