




Evercoat Poly-Flex is a flexible polyester glazing putty formulated to spot-fill, skim-coat, and smooth minor surface damage on flexible bumpers and plastic automotive parts.
Poly-Flex combines a flowable viscosity with flexible cured properties so it adheres to substrates that move or flex, making it suitable for common cosmetic repairs. The product is supplied with a blue cream hardener for controlled working time and cures to a sandable surface that accepts paint or primer. Evercoat has produced professional-grade fillers and putties since 1953 and developed this formulation to meet the demands of collision repair shops and DIYers working on modern plastic components.
Poly-Flex is designed to remain conformable after curing, reducing the risk of cracking on parts that flex during normal use. It bonds to a variety of plastic and composite substrates when properly prepared, and its flowable consistency helps it fill low spots without excessive shrinkage.
Use Poly-Flex for spot filling small imperfections and skim-coating repair areas where the original paint remains intact. It excels on sand scratches, nicks, dings and minor gouges that need a smooth, sandable finish before primer or topcoat.
Measure the blue cream hardener and polyester putty by volume, mix until uniform, and work quickly within the working time. Apply in thin layers for best adhesion and reduced curing stress; once cured, the material sands easily with 180-grit followed by finer grits for finishing.
After proper surface preparation and sanding, Poly-Flex accepts primer and most topcoats, making it suitable as a prep step before painting. The product is compatible with common automotive substrates, including metal and many plastics, when recommended adhesion steps are followed.
Who is this for: Evercoat Poly-Flex targets professional body shops, independent repair technicians and experienced DIYers needing a reliable, flexible glazing putty for cosmetic repairs on bumpers, trim and plastic panels. If you regularly work with flexible automotive parts or require a sandable, low-shrink solution for spot filling and skim-coating, Poly-Flex provides a balance of workability and cured flexibility to streamline repairs.
Features:
Q: Can Poly-Flex be used on painted panels without removing paint?
A: Yes — it can be skim-coated over intact paint after proper scuffing and cleaning to ensure adhesion.
Q: What grit should I use to sand Poly-Flex?
A: Start with 180-grit to shape, then progress to finer grits for a smooth finish.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.








