Castaldo® Rapido® Molding Rubber
Castaldo® Rapido® jewelry molding rubber is a VERY FAST version of our Super High Strength®, Econosil™ and other silicone jewelry molding rubbers that can speed up your work significantly. It makes tough, strong production rubber molds in as little as 15 minutes. Castaldo® Rapido® jewelry molding rubber gets your models...
Special note about shrinkage rates: The figures given for this and all other rubber molding compounds are for the rubber mold itself, not the wax pattern it produces or the final casting produced from the wax pattern. The same rubber compound molded around the same metal master model can produce highly variable final casting shrinkage rates depending on the mold maker & caster’s skill, knowledge, precision and attention to detail. Final casting shrinkage is the result of the jewelry manufacturer’s procedures. Strips measure 18" x 2 7/8th" x 1/8th" (45.7 cm x 7.3 cm x 3 mm). 5 lb. strips. Instructions.
Shore A Hardness | 38-40 |
Vulcanizes at: | 93 ̊C / 200 ̊F |
Rubber shrinkage | Very Low 0.1% |
Elongation before break | 614% |
Tensile strength before break |
1,289 psi 8.9 n/mm² |
Tear Strength before break |
104 lb./in. 18.2 n/mm |
Uses | Fast 15 minute molds. High Strength, General Purpose. |
Color | Marigold |
MSDS | Here |
Warranties are issued by the manufacturer of an item and not our store. If an item you bought is defective within the 30 days of your purchase date, we will gladly replace it for you if a receipt is present. Otherwise, we will be more than happy to help you obtain any information you need in order to properly communicate with the manufacturer of your item. Please note that if you choose to have us correspond with the manufacturer regarding your item, there will be a shipping fee and/or a repair charge if the item's warranty is deemed to be expired.
We want you to be happy with your purchase and would like to be transparent with our returns policy.
ONLINE returns are accepted within 30 days of the purchase date. All items must be unused and in their original packaging. To return an item, please contact us by e-mail or by phone to obtain an RMA number. We will gladly refund you in the original form of payment. Shipping costs for returns are paid for by customers unless item(s) are deemed to be defective or shipped incorrectly by us. Items that do not have a receipt will be issued a store credit if and when approved for return within the 30 days period. Please note, special orders are non-refundable and non-exchangeable.
STORE returns are accepted within 7 days of the purchase date but will be credited with a store credit. There are no cash returns on items purchased in store. Returns of damaged or defective items will be considered within 30 days of the purchase date.
Please note, any purchases made specifically for Trade Shows will not be authorized for return or exchange.