Foam Hardener is effective on foams below density of 20kg.
- SHD-640 can be replaced with POP(Polymeric polyol)
- SHD-640 + CaCO3: best way to increase hardness and save cost reduces the hardness of the foam.
Application: Mattress, sofa, topper, cushion.
| Physical Property | Spec. |
|---|---|
| Appearance | Yellowish clear |
| Viscosity(25˚C, cps) | 5,000↓ |
| OH value, mgKOH/g | 300 ± 15 |
Dosage: 2.0 to 10.0 php
