Plasticizers or polyesters can solve the problem of paint films becoming cold and brittle

After a lot of things have been applied to paint, especially for a few years, when the weather is cold, the paint film becomes brittle and it is easy to fall. Today we come to collect the solution of this brittle coating.

Generally easy to use is the curing agent dry naturally, pay attention: two-component self-drying, not a single component nitro dry, nor is it baked. This simple operation is simple, but its practicality is not very strong.

Replace the hardener or spell hardener. For example, we have tried Deqian's 8043 polyester, which we did not split off several times. Very good, is to spend more money.

If you only refinish paint, you can choose a good adhesion resin, acrylic or polyester, with HDI curing agent, N75 may be better than 3390. If not, switching to N-3800 hardeners or spelling should be a big improvement.

There is another: using Bayer's HDI elastic curing agent relative to the aromatic curing agent is relatively high cost can be a small amount of the fight, on the Other hand still consider further improving the flexibility of the main resin. Adjuvants can be considered with some plasticizers, but usually have other side effects such as decreased chemical resistance.