Brick carving mold silicone

Brick carving mold silicone

Commodity Details

Introduction of brick carving mold silica gel:


Brick carving mold silicone is a mold glue made with a special anti-burning agent. The made silicone mold is more resistant to burning. It is produced with high-quality raw materials at home  abroad, without impurities,  has better product performance.




Silicone for brick carving mold:


Brick carving mold silica gel is suitable for the production of various brick carving molds  product duplication. It can also be used in the duplication  mold making of cultural stones, cement products, sandstone reliefs, cultural bricks, grc components, plaster lines  other industries. The recommended hardness range is 15-40 Shore degrees,  the final hardness value is determined according to customer product requirements  processes.



Features of brick carving mold silicone:

1. Good fluidity, simple operation, no sticking, easy demoulding,  no damage to the mold;


2. Special anti-burning agent is added to the silicone to make the silicone mold more resistant to burning;


3. There are many times of mold turning, good copy effect, long service life of silicone mold,  more cost-saving than ordinary silicone;


4. Excellent performance, can be adjusted according to customer requirements.



Brick carving mold silicone operation:

1. Stir the silicone  curing agent according to the ratio of 100:2-3;


2. After the silica gel  the curing agent are evenly stirred, perform vacuuming to remove bubbles. The vacuuming time should  be too long, under normal circumstances, it should  exceed ten minutes;


3. Grind  polish the mold to be smooth,  then apply the release agent. The release agent must be evenly applied,  the mold must be fixed on the wooden board with glue;


4. Pour the vacuumed silica gel directly onto the product. After the silica gel is dried  formed, take out the product  the mold is formed.


砖雕模具硅胶制作流程

Note on the operation of brick carving mold silica gel:

1. Use clean operating tools to prevent silica gel  mixing with impurities  affecting curing;


2. The silica gel  the curing agent must be stirred evenly. If they are  evenly stirred, the silica gel will be unevenly dried  cured, which will affect the service life of the silicone mold  the number of mold overturns,  even cause the mold to be scrapped.


3. The vacuuming time should  be too long. Under normal circumstances, it should  exceed ten minutes. If the vacuuming time is too long, the silica gel will solidify immediately, resulting in a cross-linking reaction, making the silica gel piece by piece  unable to be painted  poured. This wastes silica gel;


4. The perfusion mold is generally made of silicone with relatively soft hardness, so that it is easier to demold  will  damage the products in the silicone mold;


5. The product  model to be copied before pouring the silica gel must be filled with a release agent  release agent.



Parameters of brick carving mold silica gel:

color

white/translucent

Hardness (Shore A)

15±2

20±2

25±2

30±2

33±2

40±2

Vulcanizing agent 

addition (%)

2-3

Dynamic viscosity 

(mPa.s)

1.3w±0.2w

1.7w±0.2w

2.5w±0.2w

2.7w±0.2w

2.5w±0.2w

1.5w±0.2w

Tensile strength 

(MPa)

2.5

2.8

3.4

4.0

3.5

Tearing strength 

(KN/m)

16±2

19±2

24±2

25±2

21±2

Elongation(%)

380

530

410

420

450

180

Density (g/cm³)

1.08

1.09

Operating time (min)

30-50

30-40

30-50

Curing time (h)

4-5

3-4

4-5

Linear shrinkage 

rate (%)

0.3

standard packaging

25kg

Note: The above parameters are only regular parameters. If you have special requirements, please contact our company; the hardness, viscosity,  operating time after curing can be specially adjusted  provided according to customer needs.


Recommended hardness of liquid mold silicone

hardness

0 degrees-below 0 degrees

5 degrees

10 degrees -

20 degrees

25 degrees -

35 degrees

40 degree

45 degrees -60 degrees

Usage suggestion

It is super soft below 0 degrees, generally used for silicone doll adult products, sex products, etc. 0 degrees is slightly harder depending on customer needs.

5 degree softness is generally used for making silicone products, but also for small  surprising fondant molds, soap molds, pad printing rubber heads, etc.

10°-20°C is suitable for all kinds of moulding products, with good softness  good tear resistance, suitable for candles, handmade soaps, handicrafts, chocolate candies, special-shaped plaster threads, etc.

Good tear resistance, high hardness, no deformation, suitable for split brush molds. Such as cement products, cultural stones, sandstone reliefs, resin crafts, tire molds, etc.

40 degrees is very hard, similar to the hardness of sports shoe soles, suitable for filling, such as electronic potting,  it is  recommended to open molds.

When the hardness of silica gel is higher than 50 degrees, it is easy to become brittle, the tear resistance performance is reduced,  it has no flexibility. It is suitable for filling  is  recommended for use in mold opening.

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