B3 141B blown rigid polyurethane foam system for continuous sandwich panel

Quick Details Port: Shanghai Payment Terms: L/C,D/P,T/T,Western Union Supply Ability: 9000 Metric Ton/Metric Tons per Month Type: Polyurethane,Other Purity: 99% MF: C10H12N4 CAS No.: 51852-81-4 Delivery Detail: Shipped in 0 days after payment Packaging Detail: 200kg/drum HUNGSUNCHEM Specifications B3 141B blown rigid polyurethane foam system for continuous sandwich panel B3 141B blown rigid polyurethane foam system for continuous sandwich panel   General description: Component A: this product is a mixture consisting of polyether polyols, silicone stabilizer, and catalyst, using HCFC-141b as foaming agent. It is a light yellow liquid at room temperature. It has been developed to produce polyurethane (PU) cored high and low pressure continuous sandwich panel in conjunction with polymeric MDI. Can pass B3(DIN4102-1)class testing without steel. Component B: is isocyanate (polymeric MDI) Physical Characteristics   Component A Component B Appearance light yellow transparent viscous liquid Brown liquid Viscosity (25°C, mPa.S) 300~400 150~230 Hydroxy Valuemg KOH/g 380~410 — NCO content — 30~32 Moisture Content(%) ≥0.07 — Density (25°C,g/cm3) 1.11~1.2 1.23~1.25   Process and reactivity characteristics ratio pbw (A:B) Material temperature(°C) Mold temperature(°C) Feed volume for 1cbm foam (Polyol + Isocyanate) (Kgs) cream time (S) gel time (S) tack-free time (S) demould time(Min) free rise desity (kg/M3) 100:100 20~25 […]