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Polycraft PU5800 Variable Polyurethane Foam (Soft / Medium / Hard)

£15.00
(Inc. 20% VAT)
(£12.50 Exc. VAT)
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Size
0 in stock
Quick Link Code
QL7871
Brand
Polycraft

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Information

Polycraft PU-5800 variable foam is a two component polyurethane foam system, that when mixed gives a medium density soft, medium or hard elastomeric foam. The foam is self-skinning, durable and has excellent physical properties. Typical free rise density is between 140 – 160 kgm-3, however the foam can be over packed in the mould to give higher densities of up to 500 kgm-3. The final hardness of the foam can be adjusted by small adjustments to the mixing ratio.

  • Variable Foam,
  • Different mix ratios can be added
  • Soft, Medium or Hard foam can be achieved
  • Self-Skinning, Durable, Easily Pigmented, Rapid Demould

Polycraft Variable Foam can be used at 100:33 by weight for soft foam, 100:36 by weight for medium foam and 100:40 by weight for hard foam, different ratios will produce different foam hardness.

For bulk castings using Medium and Hard PU5800, shrinkage of the cured product may be observed. 

Table Below is based on a Soft foam mix of 133g at 25°C

 

Unit

SoftMediumHard
Cured Feel Soft FoamMedium FoamHard Foam
Mix RatioBy Weight 100A - 33B100A - 36B100A - 40B
Hardness SoftMediumHard
Cured Colour Amber / YellowAmber / YellowAmber / Yellow
Cream TimeSeconds30 - 4030 - 4030 - 40
Tack Free TimeSeconds100 - 140100 - 140100 - 140
Rise TimeSeconds135 - 165135 - 165135 - 165
Exotherm °C85 – 9585 – 9585 – 95
Free Rise Densitykgm-3140 - 160140 - 160

140 - 160

Tensile StrengthMPa0.19 – 0.21TBCTBC
Tear StrengthkN/m0.93 – 0.94TBCTBC
Elongation at break%120 – 140TBCTBC

For best results ensure resins and moulds are at temperature above 25°C before using, using at colder temperatures will effect cured characteristics and may inhibit cure. Ensure moulds are free from dust and other contaminants. Always perform small test before pouring large amounts to ensure suitability. The user must first thoroughly test the foam 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. Polycraft foams are moisture sensitive, keep containers closed when not in use. When stored correctly unopened product has a shelf life of 6 months from purchase. Please refer to website for further information regarding usage.

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