Accueil Reusable silicone membranes RTV silicones for composite molding

Composites

RTV silicones for composite molding

  • bi-component (RTV) sprayable silicone for manufacturing reusable membranes for infusion, debulking and vacuum moulding in ovens and autoclaves

Revolutionise your composite molding processes

The DIASIL line consists of two-component RTV silicones designed for infusion, vacuum casting, oven curing, and autoclave curing. Sprayable, pourable, and reusable, they offer fast processing, excellent thermal stability, and perfect reproduction of even complex shapes.

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Why choose DIASIL 20 and DIASIL 49 RTV silicones?

Reusable

One silicone membrane, multiple cycles: optimize your costs.

Economic

Zero shrinkage, molded directly on your production tooling.

Extremely smooth

Silicone adapts to all shapes, even the most complex ones.

Ultra-fast

Cures in just a few minutes for instant results.

Versatile

Compatible with infusion, prepregs, drying ovens, autoclaves, etc.

  • Diasil 20 RTV Silicone for reusable membrane
  • sprayable bi components for composites DIASIL20
  • RTV silicone for vacuum infusion and pregeg in oven Diasil20

DIASIL 20 – RTV silicone for infusion and oven curing

DIASIL 20 technical specifications

  • Up to 200°C
  • Hardness: 20 shore
  • Unvulcanised
  • Gel time: 3’
  • Elasticity: 350%
  • Shrinkage: < 0.1%
  • Color: translucent yellow (allows you to see the resin flow)
  • Packaging: 25 L of A + 25 L of B

Benefits of DIASIL 20

  • Perfect for vacuum infusion and oven curing of prepregs
  • Suitable for polyester/vinyl ester resins
  • Very easy to spray or pour
  • High flexibility to accurately conform to complex shapes
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  • RTV silicone for composite process Diasil 49
  • 2 component silicone rubber for autoclave Diasil 49
  • RTV silicone with excellent resistance to compression Diasil 49
  • RTV silicone with a perfect spray application Diasil 49

DIASIL 49 : High-performance RTV silicone for autoclaves

DIASIL 49 Technical Specifications

  • Up to 200°C
  • Hardness: 49 shore
  • Unvulcanised
  • Gel time: 5 minutes
  • Elasticity: 250%
  • Shrinkage: > 0.1%
  • Color: blue
  • Packaging: 5L + 5L and 25L + 25L

Benefits of DIASIL 49

  • Excellent compressive strength for autoclave cycles
  • Ideal for high-performance composite parts
  • Dimensional stability under high pressure
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Our Line of RTV Silicones and Additives

Diasilcoat: two- and three-component varnishes

  • Drastic reduction in the coefficient of friction
  • Limits face-to-face blocking
  • Reduces fouling and surface contamination

Thixo agent

Diatex also offers a range of specialty additives:

  • Allows you to quickly thicken silicone
  • Ideal for vertical applications
  • Compatible with the DSM4 sprayer

Diasil delay agent: RTV inhibitor

Designed for high-temperature applications:

  • Adjust the setting time to suit your needs
  • Optimises work on large areas
Catalogue Interactif Composites

Personal space

A personnal space to go even further

Diatex customers and partners can access an interactive space that includes:

  • exclusive content for your composite projects,
  • technical videos,
  • an interactive catalogue,

Frequently Asked Questions

No questions available.

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