RTV Silicone Rubber Softening Additive Softener 100g
Description
The addition of this additive to the liquid silicone rubber before it
cures will create a more supple rubber with greater elasticity and a
lower shore hardness. The product is inert making it safe for use in
skin grade rubbers and food contact rubbers complying with FDA
regulation 21 CFR 178.3570. The additive should be thoroughly mixed into
the liquid rubber before it cures. With platinum addition cure rubber
it can be added to either part A or part B or both.
Below is a guide to the effects, the results may vary slightly with different rubbers.
Tin/Condensation Cured Silicone
| Softener Added | Reduction in Hardness |
|---|---|
| 0.5% | 5% |
| 1% | 10% |
| 2% | 20% |
| 3% | 30% |
| 4% | 40% |
| 5% | 50% |
Platinum/Addition Cured Silicone
| Softener Added | Reduction in Hardness |
|---|---|
| 5% | 8% |
| 10% | 17% |
| 15% | 25% |
| 20% | 33% |
| 25% | 42% |
| 30% | 50% |
*Adding above 5% will start retarding the reaction giving a longer pot life and cure time. The effect is exponential and large additions will create significant delays of up to 6 times longer at 30%. A small test is recommend first as these are guides and the composition of each individual silicone product is different hence the results can vary greatly.*
Shipping
We combine postage however ebay wont calculate the correct amount automatically. You will need to click the request a total from seller option whilst checking out so I can set it to the correct amount before you complete the payment. I do issue refunds on multiple orders if a total isn't requested. However ebay don't refund their fee on partial refunds so I have to deduct their fee (11%) from the saving.
We aim to process, pack and dispatch your orders in the shortest time possible, most orders will be dispatched within 1 business day. Orders placed on Saturday, Sunday or holiday periods will be processed on the next working day. Where an estimated timescale for delivery is provided, this is an estimate only and your items may be delayed in being received due to circumstances beyond our control (such as a courier delay, or at busy times). DWR plastics ltd shall not be under any liability to the Purchaser in respect of delay in delivery howsoever rising.
