DonSpray 502 is spray blend polyols with HCFC-141B as blowing agent, it reacts with isocyanate to produce foam which has excellent performances, which are as follows,

1) zoo thiab cov hlwb tsis zoo

2) Tsawg thermal conductivity

3) Cov Hluav Taws Kub Zoo Tshaj

4) Kev kub me me tsawg dimentional ruaj khov.

Nws siv rau txhua yam ntawm thermal rwb thaiv tsev cov dej num uas siv cov tshuaj tsuag txias, xws li cov raj dej txias, cov roj loj loj, txhim kho sab nraud lossis sab hauv-phab ntsa thiab lwm yam.