Overview

The Foamjoint 75mm by 25m expansion joint filler is supplied here as a pack of 15 rolls, each roll measuring 75mm wide by 25 metres long. It is the same closed cell, cross-linked polyethylene foam as the single roll, packed in bulk for larger concreting projects, multi-site jobs and trade users who work through a whole roll per pour.

Each roll is 10mm thick and 75mm wide, with a manufacturer part number of 70251. The foam is a continuous one-piece extrusion, so the whole 25 metre length performs consistently without lamination lines that could split under movement.

Key Features

• Pack of 15 full 25 metre rolls, 375 metres of filler in one order
• Closed cell, non absorbent foam that resists water and contaminants
• Cross-linked structure for compression recovery after load
• Resistant to diluted acids, alkalis, oils, solvents, fungi and insects
• Stable from minus 40 to plus 95 degrees Celsius
• Compatible with most liquid sealants as a joint backing

Specifications

• Pack contents: 15 rolls
• Roll size: 75mm wide x 25 metres long x 10mm thick
• Manufacturer part number: 70251
• Total length per pack: 375 metres
• Material: closed cell cross-linked polyethylene foam
• Temperature range: minus 40 to plus 95 degrees Celsius

Applications

• Multiple expansion joints on a single slab pour
• Driveways, footpaths and paved areas on a larger scale
• Roadway and bridge joint control work
• Industrial floor joints across a whole warehouse floor
• Trade crews working several sites at once

What You Need to Complete the Job

Fit each roll vertically into the prepared joint cavity before pouring, stapling or gluing it in place where the joint is long. Finish the joints with a liquid sealant after the concrete cures. The foam suits all standard joint widths at this 75mm size, and you can pair it with the single roll when a job needs one extra length. Seal the finished slab with a concrete sealer from the Concrete Sealers range, and find more concreting consumables in the Concreting range.

Frequently Asked Questions

How many joints will a 15-pack cover?

Each roll covers 25 metres of joint, so the pack covers 375 metres of joint in total. A typical single driveway pour might use one or two rolls, while a warehouse floor with a full joint grid will go through several. Work out your total joint length, then order the number of packs that covers it.

Is the 15-pack the same foam as the single roll?

Yes. It is the same 75mm by 25m, 10mm thick, closed cell cross-linked polyethylene foam with the part number 70251. The 15-pack is simply the same product in bulk, which usually works out at a better price per roll for trade users.

Can I staple the foam into the joint?

Yes. The foam is easy to staple into timber formwork or to fix with construction adhesive on concrete. If you do not want fasteners in the joint, the foam is also rigid enough to sit in place when it is cut slightly oversized and pressed into the gap.

Does this foam suit both indoor and outdoor joints?

Yes. It is UV stable and weather resistant, and it resists the diluted chemicals and oils found on building sites. That makes it suitable for outdoor driveways and footpaths as well as indoor industrial floors, where it keeps the joint clean and supports the sealant above it.