Bitumen mastic
A thick, fibre-reinforced bitumen compound for sealing joints, flashings and penetrations.

Where Bitumen mastic is used
Bitumen-based coatings, waterproofing and road materials, supplied alongside binders so a project can source everything in one order.
- 01Roof detailing, flashings and upstands
- 02Sealing joints and cracks
- 03Bedding and repairing membranes
Conforms to ASTM D4586 type
Supplied to ASTM D4586 type or equivalent; the exact specification and product data sheet are confirmed per order.
Typical specifications — Bitumen mastic
| Property | Unit | Min | Max | Test method |
|---|---|---|---|---|
| Non-volatile content | % wt | 70 | – | ASTM D4586 |
| Sag resistance at 60°C | mm | – | 6 | ASTM D4586 |
Typical values based on ASTM D4586 type. The binding specification for each cargo is the certificate of analysis issued at loading. Custom specifications are available on request.
Storing Bitumen mastic

Storage: Keep in original sealed packaging in a cool, dry, shaded place.

Containers: Reseal opened pails and drums immediately. Store membrane rolls upright.

Fire safety: Solvent-based products are flammable. Keep them away from ignition sources and in a ventilated area.

Shelf life: Use within the shelf life shown on the product data sheet, typically 12 months unopened.
How we ship Bitumen mastic


Get a price for Bitumen mastic
Tell us the quantity and destination port. We'll send you a written offer today.
- No cost to ask
- FOB · CIF · CFR · DAP
- LC, SBLC or TT against documents
Bitumen mastic: common questions
What is Bitumen mastic?+
A thick, fibre-reinforced bitumen compound for sealing joints, flashings and penetrations.
What is Bitumen mastic used for?+
Bitumen mastic is mainly used for: roof detailing, flashings and upstands; sealing joints and cracks; bedding and repairing membranes.
Which standard does WGV's Bitumen mastic meet?+
Supplied to ASTM D4586 type or equivalent; the exact specification and product data sheet are confirmed per order.
How is Bitumen mastic shipped?+
WGV Oil Trading ships Bitumen mastic by pails or steel drums, on FOB, CIF, CFR or DAP terms. Every cargo is inspected at the load port by SGS, Intertek or an equivalent independent inspector.
How do I get a price for Bitumen mastic?+
Send the quantity, destination port, preferred Incoterms and timing through the quote form on this page, by WhatsApp on +34 663 192 105, or by email to sales@wgvoiltrading.com. WGV Oil Trading replies with a written offer the same day. Payment is by documentary LC, SBLC or TT against documents.

