According to Sika, the foam has good adhesion to most surfaces and produces an excellent cell structure.
Biresin ER200 epoxy system can be used in the production of surf boards, dagger boards, doors and many other hollow components where the part needs to be filled at minimum weight increase.
Biresin ER200 generates low expansion pressure during foaming and has a gel time of approx. 60 minutes. The system is insensitive to moisture during processing, thus its properties are uniform and can be relied on to produce consistent results.
The final density of the foam can be varied by modifying the level of the foaming agent. At 3% addition, the final free foam density is ~0.2 kg/dm2. At only 1% addition of the foaming agent, the foam density is approximately 0.4 kg/dm2.
This ability to vary the foam density within one system allows excellent working flexibility.