A, mold rubber application

Is mainly used in precision mold manufacturing, such as polyurethane, epoxy resin molding precision mold production, scale requires stable chemical building materials and carbon fiber composite materials and machine parts of surveying and mapping, can also be used for pooly resin (POLYSTER), epoxy resin (EP - foxy) and PU foam resin decorations and crafts of copying, the art of making and candles and gypsum grinding tool, can also be used in the furniture industry and electronics industry production of the mold of the manufacture of products high transparency, demoulding good virtues, can see the mold filling and if there is a bubble defects such as casting materials. Can also be used for production of high hardness, high service life of rubber pad printing head.

Second, the characteristics of the mold plastic

Mould plastic temperature range under - 65 ° C to 200 ° C can use for a long time and keep its soft elastic performance, has excellent electric properties and chemical stability, water resistance, ozone resistance, resistance to weathering, non-corrosive, physiological inertia, avirulent insipidity, line shrinkage rate is low, the products high transparency, demoulding good virtues, easy operation, etc.

Three, the use of the mold plastic

Model 1310, 1320, 1330, 1340

A transparent liquid liquid components appearance before solidification

Viscosity (Mpa) s) 60000 + 5000 + 5000 70000 80000 + 5000 80000-5000

B component transparent appearance

Ratio of 10:1 (A, B)

Curing operation time (25 ℃ / min) 50 + 10 55 + 10

Curing time 14 + 25 ℃ / h 2 14 14 14 + 2 + 2 + 2

60 ℃ / h 2

After curing hardness (AO) 10 + 2 to 20 + 2 to 30 + 2 to 40 + 2

The tear strength (KN/m) or 10 or 12 or 14 15 or greater

Elongation (%) 500 or 450 p or 500 p. 300

Shrinkage (5) acuities were 0.1, 0.1, 0.1, 0.1 or less or less or less

1, the hybrid: A component (glue) and B component (hardener) mixed according to weight ratio of 10:1, mixing can be manually or using equipment.

2, deaeration: blend of rubber should be deaeration before filling mould. When a small amount of use can be carried out within the vacuum dryer, under vacuum, the volume of rubber foam can increase 4 ~ 5 times, therefore, deaeration container volume should be 4 ~ 5 times larger than the volume of rubber, colloid product back to normal in a few minutes, when the surface without air bubbles escape (approximately 10 minutes) deaeration process is completed.

3, surface treatment, rubber mold surface or need to contact the potting materials available on the surface of liquid paraffin as a release agent, etc.

4, sulfide and demoulding: after mixing deaeration rubber in 120 + 5 ℃ drying curing 30 minutes, 60 ~ 70 ℃ drying curing 2 ~ 3 hours, at room temperature curing time is 24 hours, curing temperature and time can be according to processing conditions.

Four, mould plastic storage and matters needing attention

1, this series product is a non-dangerous goods, sealed storage, in a cool place, prevent the rain, sunlight exposure, storage period for half a year.

2, the series of products in use should be banned and condensation type silicone rubber, sulfur, phosphorus and nitrogen compounds, otherwise it will affect the rubber vulcanization, if originally used condensation type of mold, must wash clean with gasoline, or mold surface can't cure or sticky.