ROYAL WS-8020RC
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
Main features
- Rapid room-temperature cure
- Low-sag thixotropic application
- Fuel and oil resistance
Product Description
Royal Sealants WS-8020RC Class B Rapid-Cure Fuel Tank and Fuselage Sealant is a two-part rapid-cure polysulfide paste for aircraft fuel tank and fuselage sealing. The low-sag, thixotropic material applies by extrusion or spatula spreading and cures at room temperature. Its documented property set includes fuel and oil resistance, low-temperature flexibility at -65 deg F, and an intermittent exposure limit of 360 deg F. The Class B system is supplied as base and accelerator components and uses controlled mix ratios by weight or volume for consistent preparation before application.
Key features
- Rapid room-temperature cure: Supports shortened sealant processing cycles
- Low-sag thixotropy: Controls placement during extrusion or spatula application
- Fuel and oil resistance: Supports documented aerospace fluid-exposure conditions
Applications
Aircraft fuel tank and fuselage sealing where the documented rapid-cure Class B polysulfide process and fuel or aviation-fluid exposure scope apply.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As supplied / before processing
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product form | Paste | - | As supplied |
| Product format | Two-component sealant | - | Base and accelerator system |
| Chemical family | Polysulfide | - | Reactive sealant chemistry |
| Application method | Extrusion or spatula spreading | - | Apply after substrate preparation |
| Mix ratio by volume | 100:10.14 | - | By volume |
| Mix ratio by weight | 100:12 | - | By weight |
After processing / final state
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Low-temperature flexibility | No loss of adhesion or cracking | - | At -65 deg F |
| Intermittent exposure temperature | Max. 360 | deg F | Documented intermittent exposure |
| Nonvolatile content | Min. 97 | % | Cured material |
| Specific gravity | Max. 1.45 | - | Cured material |
| Fuel swell | Max. 6.5 | % | AMS 2629, test method Type 1 |
| Tensile strength | Min. 350 | psi | At 77 deg F after 14-day standard cure |
| Ultimate elongation | Min. 300 | % | At 77 deg F after 14-day standard cure |
| Ultimate hardness | 52 | Shore A | Cured material |
