Transtar’s Mul-TIE Adhesion Promoter greatly enhances the adhesion and durability of virtually all types of automotive finishes and a variety of substrates; including problem plastics, such as TPO and polypropylene. Mul-TIE can be used under primers on flexible and rigid plastic parts, as a tie-coat between fresh or existing primer and color (single stage or basecoat) and for painting aluminum or steel.
Suitable Substrates
• Raw plastic – rigid (SMC, BMC) • 1K primer
• Raw plastic – flex (ABD, PPO)
• Raw plastic – soft (PUR)
• Plastic part – primed
• 2K primer
• Primer – self-etching
• Body filler
• OEM finish & old paint work – non-reversible
• Bare steel
• Bare aluminum
• Fiberglass
• SMC gel coat Note: Due to the diverse nature of plastics, always test plastic substrate for acceptable adhesion. Adhesion promoter maybe required for proper adhesion. Note: Test pre‐primed panels with acetone or paint thinner. If coating fails, strip panel to bare plastic & follow SOP 251 for Raw Plastic.
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