Professional Car Polyester Putty — Auto Primer Filler & Body Filler
Product Overview
Our car polyester putty (auto body filler) is a two-component, fast-drying polyester filler engineered for professional auto body repair. It delivers excellent adhesion to steel, aluminum and galvanized substrates, an ultra-smooth finish after sanding, and reliable crack resistance — the ideal primer filler for repair shops, distributors and refinish paint brands.
Key Features & Benefits
- Excellent adhesion strength on steel, aluminum and galvanized panels;
- Smooth, pinhole-free surface finish for a flawless topcoat result;
- Fast curing — surface ready to sand in 2–3 hours;
- Easy mixing and sanding for efficient body shop workflow;
- Low-shrink, non-sag formula for deep dent filling;
- 12-month shelf life with stable storage from 5–30°C.
Applications
- Automotive body repair and dent filling;
- Primer surfacer / primer filler before topcoat spraying;
- Suitable for car, truck and commercial vehicle refinishing;
- OEM/ODM and private-label packaging supported.
Guidelines for the use of atomic ash and its susceptibility to deterioration factors
Usage precautions:
- Stir evenly before use, and the remaining atomic ash that has been scraped cannot be poured back into the original tank;
- Before scraping, it is necessary to mix atomic ash and curing agent in proportion, mix them evenly, and avoid cracking or softening;
- Curing agents are flammable, explosive, and irritating to the skin. Avoid direct contact;
- Atomic ash should not be too thick in a single application, and deep pits should be scraped and coated layer by layer;
- It is prohibited to directly spray the topcoat onto the putty to avoid affecting the gloss of the topcoat.
Reasons for easy deterioration:
- The main component isocyanates are prone to react and deteriorate with moisture in the air;
- Additives (inhibitors/promoters) affect product stability;
- The formula needs to be adjusted according to the environmental climate ratio;
- It needs to be stored dry and sensitive to climate;
- Poor quality packaging can reduce product quality.