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Polycraft GP-3481-F General Purpose RTV Condensation Cure Mould Making Silicone Rubber

Polycraft GP-3481-F General Purpose RTV Condensation Cure Mould Making Silicone Rubber
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Our Price:  £6.75(Inc. 20% VAT)(£5.63 Exc. VAT)Earn 6 Loyalty Points


Quick Link Code:  2460
Brand:  Polycraft
Polymerization:  Condensation Cure

  (6 Reviews)

*Image(s) For Illustration Purpose Only

High strength silicone mould making rubber. Our silicone has been formulated for easy mixing by hand, with colour coded components (red or green) giving a visual aid to ensure mixing is adequate. The two components mix easily and because of the low viscosity most grades can be used without processing in a vacuum chamber. This silicone is suited for the detailed reproduction of figures, art objects and similar items.

FC6600 / FC6620 / FC6630 / FC6666 Polyurethane resins are not suitable to be used with condensation cure silicone, these resins must be used with addition cure silicone mould making rubber, any other polyurethane resin that the model number is not listed above will be fine to use with the GP-3481-F silicone.

Features :
Outstanding release properties
High Flowabilty and long woring time
Medium Hardness
High tear resistance
High elasticity for easy removal of complex replica parts
Can be made thixotropic (non flowable) for vertical surface replication
Cured Properties of MBFG Silicone

  • Red silicone catalyst is by far the most popular catalyst to use with the GP-3481-F silicone, it gives great air release with longer working and demould times.
  • Clear catalyst is used when pigments are required, when mixing pigments into a white silicone base it can result in lighter shades of the colour intended. e.g black pigment will become grey / dark grey.
  • Green silicone catalyst is used when time is off importance, it will cure a lot quicker roughly in half the time, but this will not give as good of air release as the red fast set catalyst.

NOTE - When using clear catalyst, best to double mix the silicone and catalyst because it is very hard to see if the catalyst has fully mixed through, so a double mix is advised.

  Red Fast Catalyst  Clear Fast Catalyst   Green Very Fast Catalyst
 Mix Ratio  10 : 1  10 : 1  10 : 1
 Working Time  40 - 60 Minutes  40 - 60 Minutes  20 - 30 Minutes
 Curing Times  6 - 8 Hours @ 25°   6 - 8 Hours @ 25°  2 - 4 Hours @ 25°
 Cured Colour  Light Pink White Light Green 
 De-Mould Time  12 - 24 Hours  12 - 24 Hours  6 - 8 Hours
 Mixed Viscosity mPas  18000  18000  18000
 Hardness Shore A  27  27  27
 Tensile Strength Mpa  3.0  3.0  3.0
 Elongation @ Break %  520  520  520
 Tear Strength kN/m  23  23  23
 Linear Shrinkage  0.2-0.5  0.2-0.5  0.2-0.5

Kit Size's:
275g kit = 250g Silicone - 25g Catalyst
550g kit = 500g Silicone - 50g Catalyst
1.1kg kit = 1kg Silicone - 100g Catalyst
2.2kg kit = 2 x 1kg Silicone - 2x 100g Catalyst
5.5kg kit = 5kg Silicone - 500g Catalyst
11kg kit = 2 x 5kg Silicone - 2 x 500g Catalyst 
22kg kit = 20kg Silicone - 2kg Catalyst

250g of Silicone will fill approximately 200ml by volume
Instructions & datasheet downloads available under Technical & Safety Sheets on the tab above.  
Please note this silicone is not suitable for food use. It is also not suitable for direct use on skin.

Base and catalyst use universal containers for various kit sizes and are supplied by weight, while the supplied containers may not be full, they will contain the correct amount of both base and hardener according to the listing. At point of packaging and dispatch lids may be taped to prevent damage or spillage during transportation.

Average Rating (6 Reviews):  
Write a Review and share your opinions!

Good stuff
Tuesday, 8 April 2014  | 

My project would've been sunk without this product. Took a little trial and error as I needed to make a mould of part of a cornice on the ceiling but once I got the technique right the mould was spot on. Very versatile, simple 10:1 ratio makes it easy to mix and sets well.

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8 of 9 people found this review helpful.

Easy to use and gives great detail
Saturday, 15 March 2014  | 

Coloured hardener makes it easy to check you have mixed thoroughly.

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14 of 15 people found this review helpful.

rtv silicone
Wednesday, 4 December 2013  | 

fast service,i placed my second order now.and have found the silicone very easy to very user friendly and data sheets and info sheets helpful

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5 of 7 people found this review helpful.

Sunday, 22 September 2013  | 

I think the best silicone mould making rubber I had. Fast curing, very strong and ideal for brush on moulds when mixed with thixo. Wont change for any other silicone. Highly recommended.

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7 of 7 people found this review helpful.

Excellent delivery
Saturday, 18 May 2013  | 

Fast delivery, excellent product and kept me well informed, will use this as my new distributer

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9 of 10 people found this review helpful.

Great Value & Super Fast Delivery
Wednesday, 14 November 2012  | 

Amazed at quality of silicone for price, item arrived less than 24 hrs after I ordered it. Will be back for more !!

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38 of 40 people found this review helpful.

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