Plas-Stick^™ Adhesion Promoter for Plastics 2322S

Desciption

2322S is an adhesion promoter for polyolefin in or unidentified unprimed automotive plastics. When combined with proper surface preparation, this product enhances the performance of ChromaSystem^TM products on unprimed polyolefin plastic parts. 2322S must be primed or sealed prior to topcoating.

General Information

Components: 2322S Plas-Stick^TM Adhesion Promoter for Plastics

Mix Ratio/Viscosity: Ready-to-spray.

Pot Life: Indefinite

Additives

Tinting: Not Recommended

Primer/Sealer

• Plas-Stick^TM Flexible Adhesion Sealer 2340S
• DuPont URO^® Primer-Filler (for rigid plastics only)
• DuPont URO^® Primer-Filler with 2350S
• ChromaFil^TM (for rigid plastics only)
• ChromaPremier^TM Sealer (for rigid plastics only)
• ChromaPremier^TM Sealer with 2350S
• Prime' N Seal^TM l (for rigid plastics only)
• Low VOC Prime 'N Seal^TM (for rigid plastics only)

Note:
Always apply one of the preceding Primers/Sealers over 2322S.

Application

Substrates: Unprimed rigid, semi-rigid, or flexible automotive polyolefin or unidentified plastic parts.

Note:
Do not use 2322S over polyethylene, silicone rubber, polyurethane foams, or primed plastics

Surface Preparation

All plastic substrates must be thoroughly cleaned in the following manner:

• Wash with mild detergent and hot water.
• Clean with Plas-Stick^TM Plastic-Prep 2319S to remove mold release agents. Use a clean cloth for this step and repeat applications if needed.
• Sand thoroughly with P500 - P600 grit paper or a gray scuff pad.
• Reapply 2319S to remove sanding sludge and to eliminate static.
• Wipe dry.

Tips for Success

• To test the surface preparation, pour a cap of 2319S on the prepared area. 2319S will sheet cleanly over a clean substrate. If 2319S beads up, the surface is not clean.
• For difficult-to-clean and textured plastics, temper the substrate for 30 minutes at 140° F after cleaning and sanding (if applicable). This may be helpful in driving out further mold release agents.Do not sand after tempering. Reapply 2319S after tempering.
• Use a clean cloth for applying and wiping 2319S.
• If the part is pre-primed, try to avoid cut-throughs. If cut-throughs occur, complete the surface prep procedure and follow the recommended Plas-Stick^TM refinishing system designated for the unprimed plastic substrate you are working with.
• Refer to Automotive Plastics Refinishing Guide for complete system repair procedures.
• For optimum performance on flexible parts, apply 2322S on polyolefin or unidentified parts followed by 2340S. Apply 2340S directly to non-polyolefin parts.

Note:
Tempering is not beneficial for urethane parts (PUR) due to "post cure" temperatures In excess of 140° F.

Caution:
Do not use solvent-based cleaners on unprimed plastic or fiberglass (i.e., 3900S, 3901S, 3919S, 3939S) due to static buildup and the potential for flash fire.

Gun Setups*

Conventional

HVLP

Air Pressure*

Conventional

HVLP

* The listed setups cover the usual range for various application equipment. For information on specific manufacturers' equipment, see the Appendix section titled "Equipment Information" in DuPont's ChromaSystem^TM Technical Manual.

Application

Apply 2 light to medium coats. Follow with the appropriate primer or sealer.

Flash/Dry Times

Note:
2322S must be primed or sealed within 2 hours to minimize the potential for contamination and to ensure proper adhesion.

Blending: 2322S may be used for spot repairs.

Recoatability/Re-Repair

2322S may be recoated with itself at any stage of dry or cure. Avoid excessive film build.

Sanding

2322S does not require sanding. If sanding is necessary, reapply 2322S. Avoid excessive film build.

Cleanup

Clean spray equipment as soon as possible with DuPont Lacquer Thinner.

Physical Properties

VOC Regulated Areas

These directions refer to the use of products which may be restricted or require special mixing instructions in VOC regulated areas. Follow mixing and usage recommendations in the VOC Compliant Products Chart for your area.

Safety and Handling

Before using any DuPont product, be sure to read all safety directions and warnings. WEAR A PROPERLY FITTED VAPOR/PARTICULATE RESPIRATOR approved by NIOSH for use with paints (TC-23C), eye protection, gloves and protective clothing during application and until all vapors and spray mists are exhausted. In confined spaces, or in situations where continuous spray operations are typical, or if proper respirator fit is not possible, wear a positive pressure, supplied-air respirator (NIOSH TC-19C). In all cases, follow respirator manufacturer's directions for respirator use. Do not permit anyone without protection in the painting area. This product is intended for industrial use only by professional, trained painters.