ROYAL WS-8035

Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

ROYAL WS-8035

Main features

  • Rapid-cure Class B profile
  • Lightweight cured specific gravity
  • Documented electrical resistivity

Product Description

Royal Sealants WS-8035 Class B Rapid-Cure Lightweight Aerospace Sealant is a two-part rapid-cure lightweight polysulfide sealant for aerospace and space-exploration fuel tank or fuselage assemblies. The Class B system uses controlled base-to-accelerator ratios and provides a B-2 application life of about two hours. Its mixed viscosity supports sealant application before room-temperature cure, while the cured material combines low specific gravity with defined tensile strength, elongation, Shore A hardness, and electrical resistivity. Documented final-state data also include intermittent temperature exposure up to 360 deg F.

Key features

  • Rapid-cure Class B system: Provides an approximately two-hour B-2 application life
  • Lightweight cured sealant: Limits cured specific gravity to 1.1
  • Defined electrical behavior: Provides documented cured volume resistivity

Applications

Aerospace and space-exploration fuel tank or fuselage sealing where the documented WS-8035 Class B process and qualification scope apply.

Product Family

ROYAL WS-8035

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Dark gray paste
Chemistry Type
2-part, lightweight rapid-cure polysulfide fuel-tank sealant
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
≤1.10

Additional Information

Technical properties

As supplied / before processing

Property Value Unit Method / condition
Product format Two-component polysulfide sealant - Base and accelerator system
Mix ratio by volume 100:7.06 - Base:accelerator
Mix ratio by weight 100:12 - Base:accelerator
Mixed viscosity Approx. 3,900 cP Mixed material
Application life Approx. 2 h Class B-2
Tack-free time Less than 7 h Class B-2
Shelf life 9 months Documented storage life
Technical properties

After processing / final state

Property Value Unit Method / condition
Cured specific gravity Max. 1.1 - Cured material
Tensile strength Approx. 258 psi Cured material
Ultimate elongation Approx. 250 % Cured material
Final hardness Approx. 45 Shore A Cured material
Volume resistivity Approx. 6 x 10^9 ohm m Cured material
Intermittent exposure Up to 360 deg F Documented intermittent condition

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