Skip to content
Gnädinger Architectural Model Building Co.
  1. All products
  2. Bluesil RTV 3428 B translucent
Bluesil RTV 3428 B translucent

Bluesil RTV 3428 B translucent

https://www.silitech.ch/web/image/product.template/1027/image_1920?unique=6ab97c3

BLUESIL® RTV 3428 B translucent – Reactive B-component for temperature-resistant, elastic silicone molds

BLUESIL® RTV 3428 B translucent, in combination with RTV 3428 A, ensures excellent, thermally stable, and elastic molds—ideal for heavy-duty applications in industrial and technical mold making.
Translucent hardener component for cross-linking RTV 3428 A to produce resilient molds with high elasticity and temperature resistance.
Catalyst component for the RTV 3428 system – for high-precision, thermally stable, and durable casting molds.

CHF0.00 0.0 CHF CHF0.00 Excluding taxes

CHF0.00 Exclusive taxes

Price upon request

This combination does not exist.

Get in touch with us
Translucent silicone

 
Terms and Conditions

Shipping usually within 1–3 business days
(availability will be confirmed after ordering)

Express logistics – fast and reliable within Switzerland and Europe

Internal reference: 40-956.KE
HS code: 39100000

Product description

BLUESIL® RTV 3428 B translucent is the B component (catalyst) of the two-component silicone system BLUESIL® RTV 3428. In combination with RTV 3428 A, it produces an addition-curing silicone rubber with excellent elasticity, high tear resistance, and permanent temperature resistance. The translucent formulation enables the production of dimensionally stable yet flexible molds for technical, industrial, and craft applications. The system is ideal for molds with complex geometries, undercuts, and frequent reuse under thermal and mechanical stress.

product features

  • B component for RTV 3428 A

  • Addition cross-linking – without shrinkage

  • Color: translucent

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

  • Shore hardness A (in the end product): approx. 28

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

  • High tear and tear resistance

  • Low linear expansion – dimensionally stable

  • Durable and chemically inert

  • Vacuum processing possible

  • Compatible with plaster, resins, wax, PU, epoxy

Suitable partner products

  • BLUESIL® RTV 3428 A – Main component for high-quality silicone molds

  • Suitable for transparent or pigmented mixtures

Typical areas of application

  • Technical mold making

  • Series molds for PU, epoxy, and composites

  • Prototyping and tool manufacturing

  • Thermally resistant molded parts

  • Design and architectural forms

  • Elastic matrices for replication and deep drawing

Processing instructions

  1. Stir component B well before use.

  2. Mix exactly in a ratio of 10 parts A to 1 part B.

  3. Stir thoroughly, do not incorporate air

  4. Vacuum venting recommended for bubble-free results

  5. Curing at room temperature in approx. 16 hours

  6. Optional accelerated curing at 60–100°C

  7. No contact with substances containing sulfur, amines, or tin

  8. Storage: sealed airtight, at 5–30°C