liquid silicone for concrete , gypsum ,resin

Liquid silicone mold for concrete , gypsum ,resin crafts

liquid silicone mold  (for concrete,gypsum,resin etc.) 

Appilication of Hongye toys mold making RTV-2 silicon rubber :

 Hongye toys mold making RTV-2 silicon rubber is primarily intended for the mold making of 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, large-scale cement mold, artificial fossils Factory, Europe component factory, simulation landscapes, animals and plants sculpture, sandstone crafts and so on.

Hongye toys mold making RTV-2 silicon rubber features description

Hongye toys mold making RTV-2 silicon rubber  is white or red flowing liquid with general hardness of 22-50A°after curing. Hongye toys mold making RTV-2 silicon 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.

Hongye toys mold making RTV-2 silicon rubber operations

If the customer wants to make large products and large size molds, the mold should be made of silicon rubber with high hardness. On the contrary, if the mold with fine and precision patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demold, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.

(Note: our company does not recommend you to add silicone oil. If a special soft silicone mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demold.)

 RTV-2 silicon rubber for toys mold making

Frequently asked questions of molding silicone rubber

Why is the tear strength of the silicone mold weak?
In order to reduce the viscosity of silicone rubber and pursue a good quality, you may add a lot of silicone oil into the silicon rubber when making molds. In fact, it might have just the opposite effect. The tension and the tear strength will be reduced badly with the addition of silicon oil. And the silicon molds will be in a weak and flimsy manner.

Why isn’t the silicon mold acid & alkali and aging resistant?

It is due to the addition of the silicon oil. Normally we do not advise our customers to add any silicon oil into the silicon rubber. If it is necessary, the ratio must be 5%-10%.

 Why is the appearance of the finished mold striate and unsmooth?

It is because the appearance of the product or the model itself is not perfect, and it has not been polished before the further operation. So when you make silicon molds, firstly you should polish the product, spray the mold spray evenly on the product. In this case, the problem can be avoided.
 

Need any help on silicone rubber, please feel free to contact Ms Kitty:
Tel:86-755-89212369
Mob:86-18938867593
E-mail: hyjz(at)szrl(dot)net   
Skype:kity-467707861