Unlike platinum silicone rubbers (Dragon Skin® or Smooth-Sil® products) which can be heat cured, tin-cured silicones do not respond to heat. Your only option is to add a chemical to accelerate the silicone.

Adding Accel-T® dramatically reduces the working time (pot life) and demold time of Mold Max® silicone rubbers. A small amount will speed up the material considerably.  Accel-T® should be added to Part B by weight and thoroughly pre-mixed before adding Part A.

Very Important – Accel-T® will reduce the library life of the cured rubber mold in proportion to the amount used. For example, Mold Max® 30 normally has a library life of at least 5 years. Using 1% Accel-T® will reduce the library life to less than 1 year.

The following offers percentages of Accel-T® and the corresponding affects on pot-life and demold time.

 

Mold Max® 10

Mold Max® 20

Mold Max® 30

Mold Max® 40

Mold Max® XLS

0.2 %

Accel-T

Pot Life

20 min.

15 min.

15 min.

15 min.

30 min.

Cure

3 hrs.

2 hrs.

3 hrs.

2 hrs.

4 hrs.

 

1%

Accel-T

Pot Life

10 min.

5 min.

7 min.

8 min.

15 min.

Cure

1 hr.

1 hr.

1 hr.

1 hr.

2 hrs.


Note: Accel-T® does not have an affect on platinum-based silicones.