The Western Colloid #800W Elastic Cement White 3.5 gal is a multisystem accessories from Western Colloid for exact-match material ordering. Match manufacturer model/MPN 800-3.5G. This variant is sold as 3.5G with SKU WES800W35WH. When cured, #800 elastic cement forms a tough, flexible, elastic membrane that can withstand greater stress than ordinary plastic roof cement, flashing compound or even modified plastic cement.

Key Specs

• Brand: Western Colloid
• Model / MPN: 800-3.5G
• SKU: WES800W35WH
• Sell unit: 3.5G
• Product type: Multisystem Accessories
• Size: 3.5 gal
• Color / finish: White
• Category: Commercial Roofing | Commercial Roofing/Commercial Roofing Accessories | Commercial Roofing/Commercial Roofing Accessories/Multisystem Accessories

Key Features

• Elastomeric flashing, patching and sealing compound
• Water-based-superior adhesion and elongation-permanent sealing compound
• A repair compound for cold process or built-up roof systems
• For long lasting repairs to roofs, sheet metal, concree, mobile homes and air conditioning ducts
• A surface flashing compound for new cold process, Glas-Shield or mineral surfaced composition built-up roofing

Coverage & How Much You Need

Confirm coverage/yield from the manufacturer instructions and job takeoff before ordering.

Compatibility / Fitment

Use only with compatible systems and installation conditions specified by the manufacturer.

FAQs

What exactly am I ordering?

Western Colloid #800W Elastic Cement White 3.5 gal, sold as 3.5G, SKU WES800W35WH, manufacturer model/MPN 800-3.5G.

What unit is the price based on?

The price is for the 3.5G sell unit.

What should I match before ordering?

Match brand, model/MPN where available, size/color, sell unit, and the project specification.

Can this be substituted?

Treat this as an exact-match building material selection; hold for review before substituting a different model, color, size, or system family.

How do I estimate quantity?

Use the project takeoff plus manufacturer installation instructions, including waste, overlap, and accessory requirements.

Follow manufacturer instructions, OSHA-safe work practices, local code, and project specifications.

Product Expert Notes

Choose this variant when Western Colloid, SKU WES800W35WH, 3.5G sell unit, and MPN 800-3.5G match the job requirement.