What are the specific aspects of the weatherability of thermoplastic acrylic resin?

The weather resistance of thermoplastic acrylic resin is mainly reflected in the long-term outdoor exposure, rain, high and low temperatures and ultraviolet rays, which can still maintain stable performance and prevent rapid aging, pulverization, discoloration and cracking. I'll sum it up for you in the most straightforward way, which can be directly used in production/procurement:

First, the weather resistance is embodied in these five aspects.

1. UV resistance (no yellowing or blackening)

Long-term sun exposure, not easy to yellow, not deep, not dark.

Different from many polyesters, alkyds and epoxies, acrylic acid is stable to UV and has strong color retention.

Suitable for: white paint, light-colored paint and outdoor high-gloss paint.

2. gloss retention (long-term no matte, no light loss)

Outdoor use has a high gloss retention rate and will not become dumb and black in a short time.

Good thermoplastic acrylic:

High gloss can still be maintained outdoors for 1 ~ 2 years.

It is not easy to appear "old, foggy and dirty"

3. No pulverization and peeling

Resin with poor weather resistance: the surface is powdered after being exposed to the wind and the sun, and it will fall off as soon as it is wiped.

Thermoplastic acrylic acid:

Film structure is stable.

Not easy to powder, crack and fall off.

Suitable for: exterior wall, steel structure, equipment topcoat.

4. Rain resistance, moisture resistance and hydrolysis resistance

Long-term exposure to rain and high humidity:

Not white

No foaming

Does not stick back or soften.

Suitable for: outdoor billboards, containers, agricultural machinery and construction machinery.

5. Resistant to high and low temperature and climate change.

High temperature in summer does not stick back and become soft.

In winter, there is no brittle crack and skin explosion at low temperature.

Resistant to "exposure → shower → freezing" cycle, with strong stability.