RTV mold making silicone rubber HY620 for plastic toys' mass production

 RTV mold making silicone rubber HY620 for plastic toys' mass production applications

RTV mold making silicone rubber HY620 for plastic toys' mass production

 is primarily intended for poly resin crafts, PU crafts, PU resin crafts ,gypsum crafts ,unsaturated resin crafts, lighting and candles crafts ,plastic toy , stationery gifts crafts industry, a large statue Buddha, furniture, furniture decorative materials, statues Buddha, artifacts copied, building decoration materials, largescale cement mold, artificial fossils Factory, Europe component factory, 

simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

RTV mold making silicone rubber HY620 for plastic toys' mass production description

RTV mold making silicone rubber HY620 for plastic toys' mass production is white or red flowing liquid with general hardness of 22-50 shore A after curing. tin cured silicone rubber is a kind elastic silicon rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength, tear strength and elongation.

RTV mold making silicone rubber HY620 for plastic toys' mass production operation process:

1. Original modle process

2. Evenly Mixing the silicone rubber and the curing agent according to the mixing ratio

3.Vacuum pumping the mixed silicone rubber

4.Brushing cast & Perfusion Molding operation

Features of RTV mold making silicone rubber HY620 for plastic toys' mass production

a.low viscosity

b.easy operation

c.long shelf life over 12 months

d.high strength and low shrinkage

e.curing at room temperature within 2-4hours

f.high duplication times and no deformation

FAQ. Why the RTV mold making silicone rubber HY620 for plastic toys' mass production just can be reproduced for a few times?

It can be due to the following reasons: 

a. Adding too much silicone oil in to silicon rubber. Silicon oil is an additive which destroies the molecular weight of silicone rubber and reduce the tension and tear strength.

b. Using the silicon rubber with a high hardness to make molds for small sized products with delicate and intricate designs and the silicon rubber with a low hardness to makes molds for large sized products with simple designs. 

(Notes: we should choose the silicon rubber specifically according to the requirements of our products to avoid this problem.)

Datesheet of RTV mold making silicone rubber HY620 for plastic toys' mass production

The proportions and reactions of the curing agent and the silicon are listed as follows:

a. Adding curing agent 1%, the  liquid silicone rubber stone mouldings can still be operated within 2.5 hours and can be demoulded after 6-8 hours.

b. Adding curing agent 2%, the liquid silicone rubber stone mouldings can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours.

c. Adding curing agent 3%, the  liquid silicone rubber stone mouldings can still be operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours.

d. Adding curing agent 4%, the  liquid silicone rubber stone mouldings can still be operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.

Need any help on silicone rubber, please feel free to contact Ms Kitty:

Tel:86-755-89948294

Mob:86-18938867593

E-mail: hysh(at)szrl(dot)net   

Skype:kity-467707861