WS-8020RC Class B
1 of 4 products in this brandWS-8020RC Class B is a rapid cure two component polysulfide sealant. The cured sealant has excellent fuel resistance as well as outstanding sealing characteristics at temperatures ranging from -65°F (54°C) to 250°F (121°C), including intermittent exposure up to 360°F (182°C). It exhibits excellent elastomeric properties and retention after prolonged exposure to jet fuel and aviation gasoline. The uncured product is a low sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature forming a resilient rubber, exhibiting outstanding sealing.
Chemical Family: Polysulfides
Application Method: Extrusion, Spatula
Compatible Substrates & Surfaces: Coated Surfaces, Composites, Metal
Features: Excellent Fuel Resistance, Excellent Productivity, Fast Curing, Gasoline Resistant, General Purpose, Good Adhesion, Good Weather Stability, Low Sagging, Oil Resistant, Room Temperature Curing, Thixotropic
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Type Document Name
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Technical Data SheetWS-8020RC Class B Technical Data Sheet
Enhanced TDS
Identification
- Chemical Family
- GBU
- RTU Product Type
- Categories
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Applications
- Application Area
- Application Method
- Compatible Substrates & Surfaces
- Segment
Applications & Uses
- Application Instructions
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Clean the surface of substrates with appropriated cleaning solutions per specification(s) using an OEM approved lintfree cloth to remove, dirt, grease and processing oils just before the application of sealant. Pour solvent onto cloth to avoid contamination of solvent supply. Clean in small areas at a time. Wipe immediately after application to prevent redeposition of contaminants on the surface. Repeat at least three times or more if required. Use fresh wiping cloth every time! Substrate composition and surface characteristics can greatly vary, which can affect sealant adhesion. It is recommended to determine adhesion characteristics of specific substrates prior to application of sealant to get consistency.
Features
- Ready-to-Use Product Features
Features & Benefits
- Labeling Claims
- Features and Benefits Information
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This product has the following features and Benefits
- Fast curing system significantly increasing productivity
- Excellent thermal performance
- Excellent elastomeric properties and strength retention after prolonged exposure to jet fuel, aviation gasoline, hydraulic fluids, oils and lubricant
- Less than 1% linear shrinkage
- Low VOC, eco-friendly sealant which reduces hazardous impact during installation
- Outstanding adhesion to multiple metals, composites, primers and coatings used in modern aircraft
Packaging & Availability
- Country Availability
- Regional Availability
Physical Properties
- Physical Form
Properties
- Rheological Properties
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Value Units Test Method / Conditions Low Temperature Flexibility (no loss of adhesion or cracking) -65 °F - Mix Ratio (by volume, cured) 100:10.14 - - Mix Ratio (by weight, cured) 100:12 - - Nominal Service Temperature (continuous, operational range) -54 to 250 °F - Nominal Service Temperature (intermittent exposure) max. 360 °F - Non-Volatile Content (cured) min. 97 % - Specific Gravity (cured) max. 1.45 - - Swelling (Fuel Swell, AMS 2629, Test method type 1) max. 6.5 % - Tensile Strength (at 77°F, standard cure 14 days) min. 350 psi - Ultimate Elongation (at 77°F, standard cure 14 days) min. 300 % - Ultimate Hardness (cured) 52 Shore A Shore Durometer Scale Viscosity (cured) 11,000 - 14,000 poise - Weight Loss (AMS 2629, Test method type 1) max. 6 % - - Component A
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Value Units Test Method / Conditions Viscosity (base, cured) 10,000 - 14,000 poise - - Typical Properties
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Value Units Test Method / Conditions Application Temperature 54 - 121 °C - Base Polysulfide - - Peel Strength (100% cohesive failure, AMS 2471 (Anodized aluminum), AMS 2629, Test method type 1) 48 pli - Peel Strength (100% cohesive failure, AMS 2471 (Anodized aluminum), AMS 2629, ply side, Test method type 1/3%SW) 55 pli - Peel Strength (100% cohesive failure, AMS 2471 (Anodized aluminum), AMS 2629, tool side, Test method type 1/3%SW) 45 pli - Peel Strength (100% cohesive failure, AMS 4901 (Titanium), AMS 2629, Test method type 1) 40 pli - Peel Strength (100% cohesive failure, AMS 4901 (Titanium), AMS 2629, ply side, Test method type 1/3%SW) 50 pli - Peel Strength (100% cohesive failure, AMS 4901 (Titanium), AMS 2629, tool side, Test method type 1/3%SW) 40 pli - Peel Strength (100% cohesive failure, AMS 5516 (Stainless steel), AMS 2629, Test method type 1) 42 pli - Peel Strength (100% cohesive failure, AMS 5516 (Stainless steel), AMS 2629, ply side, Test method type 1/3%SW) 53 pli - Peel Strength (100% cohesive failure, AMS 5516 (Stainless steel), AMS 2629, tool side, Test method type 1/3%SW) 42 pli - Peel Strength (100% cohesive failure, AS 4/3501-6 (Graphite epoxy), AMS 2629, Test method type 1) 55 pli - Peel Strength (100% cohesive failure, IM7/5250-4 (BMI), AMS 2629, Test method type 1) 50 pli - Peel Strength (100% cohesive failure, MIL-C-23377(Primer coating), AMS 2629, Test method type 1/3%SW) 55 pli - Peel Strength (100% cohesive failure, MIL-C-27725 (Fuel tank coating), AMS 2629, Test method type 1) 42 pli - Peel Strength (100% cohesive failure, MIL-C-27725 (Fuel tank coating, AMS 2629, ply side, Test method type 1/3%SW) 46 pli - Peel Strength (100% cohesive failure, MIL-C-27725 (Fuel tank coating, AMS 2629, tool side, Test method type 1/3%SW) 43 pli - Peel Strength (100% cohesive failure, Mil-C-5541(Alodine aluminum), AMS 2629, Test method type 1) 45 pli - Peel Strength (100% cohesive failure, Mil-C-5541(Alodine aluminum), AMS 2629, ply side, Test method type 1/3%SW) 50 pli - Peel Strength (100% cohesive failure, Mil-C-5541(Alodine aluminum), AMS 2629, tool side, Test method type 1/3%SW) 45 pli - Storage Temperature max. 27 °C - - Component B
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Value Units Test Method / Conditions Viscosity (hardener, cured) max. 2000 poise -
Regulatory & Compliance
- OEM Specifications
Storage & Handling
- Storage Information
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The shelf life of WS-8020RC Class B is 9 months from the date of manufacturing when stored below 80°F (27°C) in the original unopened container.
The storage life of premixed and frozen material (PMF) is a minimum of 30 days at temperatures below -40°F (- 40°C). - Shelf Life
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30 days (below -40°F), 9 months (below 80°F)