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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
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

Soft Medium Hard
Cured Feel   Soft Foam Medium Foam Hard Foam
Mix Ratio By Weight  100A - 33B 100A - 36B 100A - 40B
Hardness   Soft Medium Hard
Cured Colour   Amber / Yellow  Amber / Yellow Amber / Yellow
Cream Time Seconds 30 - 40  30 - 40  30 - 40 
Tack Free Time Seconds 100 - 140  100 - 140  100 - 140 
Rise Time Seconds 135 - 165  135 - 165  135 - 165 
Exotherm  °C 85 – 95 85 – 95 85 – 95
Free Rise Density kgm-3 140 - 160 140 - 160

140 - 160

Tensile Strength MPa 0.19 – 0.21  TBC TBC
Tear Strength kN/m 0.93 – 0.94  TBC TBC
Elongation at break % 120 – 140  TBC TBC

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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