Bluesil RTV 3428 A + B Kit trans

Product description

BLUESIL® RTV 3428 A + B Kit white is an addition-curing two-component silicone rubber system for demanding molds in industry, trade, and prototype construction. The mixture produces a dimensionally stable, elastic material with high tear resistance, Shore hardness A of approx. 28 and excellent temperature resistance up to +250°C (briefly up to +300°C). The white pigmentation aids visual inspection during casting and demolding. Ideally suited for molds with complex geometries, thermal stress, or frequent use.

product features

• Two-component kit, addition-curing

• Color: white – good visual control during processing

• Shore hardness A: approx. 28 – flexible, dimensionally stable

• Mixing ratio: 10:1 (by weight or volume)

• Pot life: approx. 1 hour at 23°C

• Demolding time: approx. 16 hours at room temperature

• Temperature range: –60°C to +250°C (briefly up to +300°C)

• Shrink-free, dimensionally stable, highly tear-resistant

• Ideal for industrial series molds and technical impressions

• Vacuum processing possible

Suitable materials

• Polyurethane and epoxy resins

• Plaster, wax, soap, concrete

• Models made of metal, plastic, wood

Typical areas of application

• Mold making for prototypes and series production

• Tool and fixture construction

• Molding of technical components

• Thermally resistant molds for composite, plastic, and design parts

• Model and architectural forms

Processing instructions

1. Stir components A and B separately until well blended.

2. Strictly adhere to the mixing ratio (10:1)

3. Mix thoroughly – do not incorporate air

4. Vacuum venting recommended for high precision

5. Pouring into prepared, clean molds

6. Curing at room temperature or accelerated with heat

7. Demolding after complete cross-linking

8. Avoid contact with substances containing sulfur, amines, or tin.

9. Storage: airtight, cool, and dry at 5–30 °C