What is a peelable silicone coating and how is it used?

A peelable silicone coating is a temporary protective layer applied to surfaces before manufacturing operations such as sandblasting, machining, anodising, or electroplating. It cures to form a durable film that shields the coated area from abrasion, chemicals, and heat, then peels off cleanly in one piece after the process is complete — leaving no residue on the protected surface.

How quickly does Pyra-Sil™ 894 reach tack-free?

Pyra-Sil™ 894 reaches a tack-free surface in 15 minutes under ambient conditions, with a pot life under 8 minutes after dispensing. Full cure takes 72 hours at room temperature. The rapid tack-free time allows parts to be handled and moved to the masking process quickly without disturbing the coating.

What substrates can Pyra-Sil™ peelable silicone coat?

Pyra-Sil™ 894 adheres to plastics, wood, and metals, peeling cleanly from all of these surfaces after the finishing operation. It is compatible with common aerospace and electronics substrates including aluminium, steel, and engineering plastics used in precision manufacturing.

What manufacturing processes can Pyra-Sil™ protect?

Pyra-Sil™ peelable silicone protects surfaces during sandblasting and grit blasting, mechanical machining, chemical milling, electroplating, anodising, and thermal spray coating. The cured film resists abrasive media, chemical baths, and elevated process temperatures encountered in these operations.

What is the service temperature range of Pyra-Sil™ peelable silicone?

Pyra-Sil™ peelable silicone is rated from −45°C to 260°C. This wide temperature range ensures the coating maintains its protective properties and adhesion through high-temperature processes while remaining cleanly peelable after the operation.

Can Pyra-Sil™ peelable silicone be applied with automated dispensing?

Yes. Pyra-Sil™ 894 is suitable for both manual brushing and automated high-volume dispensing systems. Its self-leveling viscosity ensures uniform coverage over flat and moderately contoured surfaces for consistent protection across production batches.

Peelable Silicone Adhesives — Pyra-Sil™

One-part, self-leveling peelable silicone coatings rated to 260°C — designed for temporary surface protection during sandblasting, machining, and plating. Cures tack-free in 15 minutes and peels off cleanly from plastics, wood, and metals with no adhesive residue.

Find My Grade View Products

Cleanly Peelable — Zero Residue

Peels off cleanly from plastics, wood, and metals after processing — no silicone contamination or adhesive residue left on surfaces.

−45°C to 260°C Service Range

Withstands high-temperature industrial processing including powder coating, plating, and sandblasting without charring or bonding to the substrate.

Tack-Free in 15 Minutes

Parts are handleable in 15 minutes and fully cured in 72 hours — fast enough for production-line masking with no unwanted adhesion to keep-out areas.

Product Range

Technical Specifications

Applications

Built for Surface Treatment Masking

Pyra-Sil™ peelable silicone coatings are specified wherever a precise, residue-free
mask is required before or during plating, painting, and surface treatment operations.

Vehicle fully masked with protective sheeting in industrial paint booth for Pyra-Sil™ powder coat masking

Powder Coat & Paint Masking

Mask threaded holes, precision bearing surfaces, and electrical contacts during powder coat application — rated to 260°C to survive full oven cure cycles.

CNC milling machine precision machining a metal component for Pyra-Sil™ peelable silicone masking during

Electroplating & Anodising

Resist aggressive plating baths and anodising solutions to protect mating surfaces, dimensions, and electrical contacts from unwanted coating build-up.

Dense circuit board with electronic components for Pyra-Sil™ peelable silicone PCB and wave solder masking

PCB & Wave Solder Masking

Protect connectors, test points, and keep-out zones during wave solder and selective solder — peel away cleanly after reflowing with no flux contamination.

Conformal Coating Masking

Temporarily mask connectors, edge-card fingers, and test points during conformal coating — compatible with acrylic, urethane, epoxy, and silicone chemistries.

Metal lathe turning cylindrical rod in industrial workshop for Pyra-Sil™ machining and sandblasting masking

Machining & Sandblasting

Plug ports, seal internal passages, and protect finished surfaces during secondary machining, sandblasting, and surface preparation operations.

Precision metal parts on engineering blueprints for Pyra-Sil™ peelable silicone prototype and tooling protection

Prototype & Tooling

Quickly form temporary seals and masks for prototype testing, low-volume tooling, and rework — reposition and reapply as needed during development cycles.

FAQ

Frequently Asked Questions

Common questions about Incure Pyra-Sil™ peelable silicone coatings.

A peelable silicone coating is a temporary protective layer applied before manufacturing operations such as sandblasting, machining, anodising, or electroplating. It cures to form a durable film that shields the coated area from abrasion, chemicals, and heat, then peels off cleanly in one piece after the process — leaving no residue on the protected surface.
Pyra-Sil™ 894 reaches a tack-free surface in 15 minutes under ambient conditions, with a pot life under 8 minutes after dispensing. Full cure takes 72 hours at room temperature. The rapid tack-free time allows parts to proceed to the masking process quickly without disturbing the coating.
Pyra-Sil™ 894 adheres to plastics, wood, and metals, peeling cleanly from all of these surfaces after the finishing operation. It is compatible with aluminium, steel, and engineering plastics commonly used in aerospace and electronics precision manufacturing.
Pyra-Sil™ peelable silicone protects surfaces during sandblasting and grit blasting, mechanical machining, chemical milling, electroplating, anodising, and thermal spray coating. The cured film resists abrasive media, chemical baths, and elevated process temperatures encountered in these operations.
Pyra-Sil™ peelable silicone is rated from −45°C to 260°C. This wide temperature range ensures the coating maintains its protective properties and adhesion through high-temperature processes while remaining cleanly peelable after the operation.
Yes. Pyra-Sil™ 894 is suitable for manual brushing and automated high-volume dispensing systems. Its self-leveling viscosity ensures uniform coverage over flat and moderately contoured surfaces for consistent protection across production batches.

Peelable Silicone Adhesives — Pyra-Sil™

Technical Specifications

Built for Surface Treatment Masking

Frequently Asked Questions

Ready to Specify Pyra-Sil™ Peelable Silicone Adhesives?