Magikmold® SP-450 Blue Silicone Putty is an easy-to-use, platinum-cure silicone putty designed for the manufacture of simple, but detailed flexible molds. Putties are great for small to medium-scale mold making projects, including hobby and craft, model making, and some architectural restoration projects.
The mix ratio by volume is 1 Part A : 1 Part B. While wearing vinyl or nitrile gloves, combine proper amounts of Part A and Part B and then fold and knead the two components by hand until a uniform color is reached and there are no visible streaks. Once thoroughly mixed, apply the putty to a properly prepared model.
The working time of this product is approximately 15 minutes and the demold time is approximately 1-2 hours.
You can also purchase this product in Shore A25 (Pink).
Physical Properties
Type | Platinum-cured (addition-cure) |
Mix Ratio by Volume | 1A:1B |
Shore Hardness | A45 |
Working Time | ~15 min. |
Demold Time @ 77°F | ~1-2 hr. |
Cured Color | Blue |
Tensile Strength | 200 psi |
Elongation | 100% |
Tear Strength | 35 pli |
Specific Gravity | 1.20 |
CURE INHIBITION: Contamination from amines, sulfur, tin compounds, polyester resins, some paints and some silicone rubbers may inhibit surface cure of this product. Perform a test cure on an identical surface to determine that complete curing and good release are obtained. DO NOT wear latex rubber gloves when handling this product – cure inhibition may occur.
Product Literature
Technical Bulletin: Magikmold® Silicone Putty
Safety Data Sheet: Magikmold® SP-450 Pink Silicone Putty Safety Data Sheet