Unsaturated polyester putty for automobile sheetmetal

Abstract

The invention discloses unsaturated polyester putty for automobile sheetmetal. Main agent of the unsaturated polyester putty comprises, by weight, 100 parts of unsaturated polyester resin, 5-7 parts of methyl hydroxyethyl toluidine, 1-2 parts of styrene, 0.8-1.2 part of polytetrafluoroethylene wax, 0.5-1 part of hydroquinone, 1-2 parts of gaseous SiO2, 4-6 parts of titanium dioxide, 1-2 parts of hollow glass beads, 5-8 parts of pulvistalci and 5-6 parts of expansion ultrafine powder. Initiator of the unsaturated polyester putty comprises, by weight, 60-70 parts of benzoyl peroxide, 25-35 parts of dibutyl phthalate, and 2-8 parts of silicon dioxide.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a putty for automobile sheet metal. Background technique [0002] The putty is prepared from unsaturated polyester resin with pigments, fillers, toughening agents, accelerators, etc. and curing agents. The curing speed can be adjusted by the amount of curing agent. It is mainly used for caulking and leveling before painting. It is a kind of putty. The difference from other synthetic resin putty is: 100% participation in curing, free to shape, fill more than 10mm coating at one time without shrinkage; fast drying at room temperature, easy to polish; good adhesion to metal, high strength, delicate, smooth and smooth , It has a certain anti-rust ability, and can be well matched with various coatings without primer. Atomic ash is a fast-growing embedded material in the world in the past 20 years. Today, with the rapid development of science and technology, the rhythm of people's w...

AI Technical Summary

Problems solved by technology

This requires the automobile sheet metal repair industry to improve work efficiency and speed up construction, which has brought many adverse consequences, such as causing foaming and falling off of the atomic ash coated on the body of some repaired vehicles soon after.

But blame its occurrence reason with regard to above-mentioned this situation and mainly contain two points, on the one hand, be caused by operator's improper operation; Scratching, polishing and other performances are not satisfactory

These properties are limited by the components of the traditional putty and the production process, so it will inevitably determine its poor performance.