Liquid Silicone Rubber for Resin Craft Mold Making

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Liquid Silicone Rubber for Resin Craft Mold generally use addition silicone rubber, which is called two-component room temperature vulcanization silicone rubber, with excellent fluidity and good operational performance and is generally named two-components silicone rubber, Part A and part B. It features an exceptional fluidity and good operability.

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Product Description

Description

Features

1. high tensile & tear strength

2. Low linear shrinkage

3. free Curing agent

4. brushing & pouring

5. high duplication times

Application

It can be used for poly resin crafts, PU crafts, PU resin crafts, gypsum crafts,unsaturated resin crafts, lighting and candles crafts, plastic toy, stationery gifts crafts industry.

casts silicone for plaster cornices is also applicable for large statue Buddha, relieve, furniture decorative materials,

statues Buddha, artifacts copied, building decoration materials, large-scale cement mold.

Attention

1.The cast pouring, for example:

Prepare a frame, fix the prototype for copy into the frame, (if the prototype’s material is glass or ceramic, the release agent is necessary to prevent sticking.

2. Take 1 part A and 1 part B,mix themevenly.

3.Vacuum defoaming in 1~3 min,inject the rubber into the type box, then vacuum defoaming again, curing 24 hours in nature room temperature, use it after demold.

4. Demold after 3 hours’ room temperature curing, and then use it after 24 hours’ keep mold under the same condition.

Parameters

8 series of addition molding translucent mold silicone parameters (25℃)

Model	815	820	825	830	840
Color	translucent
Hardness (Shore A°)	15±2	20±2	25±2	30±2	40±2
Two-component mixing weight ratio (A:B)	1:1	1:1	1:1	1:1 or 10:1	1:1 or 10:1
Dynamic viscosity（mPa.s）	3000±1000	5000±2000	6000±2000	7000±2000	8000±2000
Tensile strength（MPa)	4.7	4.8	5.7	7.0	7.5
Tear strength（kN/m）	18±2	22±2	24±2	18±2	15±2
Elongation（%）	580	520	510	550	385
Density （g/cm³）	1.05	1.05	1.07	1.13	1.14
Operating time （min)	20-40	20-40	20-40	20-40	20-40
Vulcanization time（h)	3-5h（25℃）20-30min（60℃）
Linear shrinkage rate（%）	《0.1	《0.1	《0.1	《0.1	《0.1

G series of addition molding high transparent mold silicone parameters (25℃)

Model	G815	G820	G825	G830	G840
Color	high transparent
Hardness (Shore A°)	15±2	20±2	25±2	30±2	40±2
Two-component mixing weight ratio (A:B)	1:1	1:1	1:1	1:1 or 10:1	1:1 or 10:1
Dynamic viscosity（mPa.s）	9000±1000	12000±2000	14000±2000	16000±2000	45000±5000
Tensile strength（MPa)	3.2	3.2	3.3	3.3	3.1
Tear strength（kN/m）	8±2	9±2	8±2	8±2	7±2
Elongation（%）	460	460	420	420	170
Density（g/cm³）	1.05	1.05	1.07	1.13	1.14
Operating time （min)	20-40	20-40	20-40	20-40	20-40
Vulcanization time（h)	3-5h（25℃）20-30min（60℃）
Linear shrinkage rate（%）	《0.1	《0.1	《0.1	《0.1	《0.1

Packaging

Metal drum or plastic drum: 20kg, 25kg and 200kg

Parameters for Tin Cure Molding Silicone or Condensation Cure Molding Silicone

Model	915	920	925	930	935	940
Color	white/translucent
Hardness (Shore A°)	15±2	20±2	25±2	30±2	33±2	40±2
Adding ratio of curing agent(%)	2-3	2-3	2-3	2-3	2-3	2-3
Dynamic viscosity（mPa.s）	13000±2000	17000±2000	25000±2000	27000±2000	25000±2000	15000±2000
Tensile strength（MPa)	3.2	4.0	4.2	4.5	4.0	3.5
Tear strength（kN/m）	16±2	19±2	24±2	26±2	25±2	21±2
Elongation（%）	420	530	480	480	450	250
Density （g/cm³）	1.08	1.08	1.08	1.08	1.09	1.09
Operating time(min)	30-50	30-50	30-40	20-40	30-40	30-50
Curing time（h)	4-5	4-5	3-4	3-4	3-4	3-5
Linear shrinkage rate（%）	《0.3	《0.3	《0.3	《0.3	《0.3	《0.3