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Liquid Silicone Material for Tyre Mould

Tire mold liquid silicone rubber is a room temperature two-component vulcanized liquid silicone rubber( A: liquid silicone, B: curing agent), which is professionally used for tire rollover mold, tire aluminum film mold manufacturing, and precision product mold making. It is divided into addition types (The curing agent ratio is 1:1) and condensation types (the curing agent ratio is 100:2) . Considering the production cost, most customers choose the condensation type.

Model Number: YR250-30MJ AB

Viscosity（cps）: 30

Hardness（Shore A): 30

Mixed ratio（A/B）： 50:1

MOQ(KG): 2 Kilograms

Storage Time: 12 Months

Appliance: Mold Making

Appearance: Two parts, liquid

Qualification Certificate： FDA, MSDS, RoHS, REACH, and so on.
Lead Time: 5-7 days
Payment Terms: L/C, T/T

Capacity : 100 Tons/month

Spec: 20KG,25KG,200KG Barrel +Pallet

Shipping: Railway/Sea / Air

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Availability:

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Product Description

Product Description

Properties

Easy to defoaming, easy to demould, easy to pour or paint;

No low molecules are released during the cross-linking process, and the shrinkage rate is low;

High tear strength and good tensile force, and not deformed;

High-temperature resistance, temperature resistance up to 260℃;

Reusable, longer service life;

Application

Tire Retreading, Tire Mold Casting or Injection Molding

Parameter

Model	Viscosity（cps）	Hardness（Shore A）	Density (g/cm³)	Resilience (%)	Tensile strength (MPa)	Elogation at break (%)	Tear strength (KN/m)	Tensile set(%）	Line shrinkage (%)
Test Standard	DIN53019	GB/T531.1	GB/T533-2008	GB/T1681- 2009	GB/T528	GB/T528	GB/T529	GB/T528	CGB-T14235.4
YR250-30MJ AB	50	40	1.09	70	7	400	30	0.8	2.1
YR250-43MJ AB	50	40	1.09	70	7	400	30	0.8	2.1
YR250-45MJ AB	45	45	1.08	65	7	400	30	0.9	2.2
YR250-40MJ AB	45	40	1.09	68	7	420	30	0.9	2.1
YR250-35MJ AB	35	35	1.07	65	7	380	30	0.8	2.0
YR250-40MJ AB	30	30	1.08	60	6.5	320	30	0.9	2.1
Remark	Vulcanization conditions： A/B is evenly mixed， Mold:140mm×120mm×2mm,175℃×5min compression molding. Assistance with specifications is available by contacting our engineers.

Related certification

FDA,MSDS,RoHS, REACH, etc.

Colors

Can be customized.

Package

20/25/200KG/barrel

Instruction

Cut the cardboard to surround the mold seed, seal the gap of the cardboard with hot melt adhesive, keep a distance of 5mm between the cardboard and the mold seed, and apply a release agent;

According to the size of the product, mix the liquid silicone rubber at a ratio of 100:2 and stir evenly, and then put it into a vacuum machine to vacuum (vacuum to -0.1mpa);

Pour the evacuated liquid silicone rubber into the mold seed. When it is completely cured, remove the silicone rubber mold;

Notices

The vacuuming time should not be too long to prevent the cross-linking reaction of the silicone rubber during vacuuming, which will make the silicone rubber become piece by piece;

After the silicone mold is made, keep it in a ventilated, cool and dry place;