• Self skinning in a closed mould
• Soft and flexible
• High Durability
• CFC Free
• Easily cut with a sharp knife
• Water based system
Suitable for the production of film or theatre props where a lightweight flexible urethane moulding is required. May also be used for the filling of voids in costume making.
Foam is also popular in grp construction where a light and flexible foam is required.
|Polycraft 100 Soft Foam ||Unit |
|Mix Ratio By Weight ||2A : 1B |
|Cream Time (100g @ 20°C) ||20 - 30 Seconds |
|Rise Time (100g @ 20°C) ||90 - 120 Seconds |
|Free Rise @ 25°C ||Up To 8x Volume |
|De-mould Time (Mould @ 35°C) ||20 - 25 Minutes |
|Full Cure (100g @ 20°C) ||12 - 24 Minutes |
|Cured Colour ||White / Off White |
|Specific Gravity @25°c ||1.08 / 1.12 |
|Free-Rise Density Kg/m³ ||80 / 120 |
Poly Foam Soft 100 can be used at 2:1 by weight. This will produce a soft foam. The isocyanate content may be increased in order to obtain firmer foam or decreased for a softer foam. The user must first thoroughly test their chosen ratio before going into production.
Excessive usage of isocyanate can cause hardening of soft foams over time and may even cause excessive contraction of the moulding.
Soft Foam can free rise up to 8x the original mixing volume, in lower temperature conditions the free rise ratio will decrease.