Sikaseal 414 Sealant Backer Rod

The Sika Sikaseal 414 Sealant Backer Rod provides a high-quality, closed-cell foam solution designed to optimise joint sealant performance by acting as a reliable back-up filler. Available in a full range of diameters (10mm, 13mm, 15mm, 20mm, 25mm, 30mm) and generous roll lengths (from 1150m down to 160m), it simplifies application and ensures consistent results.

Used beneath elastomeric sealants and mastics in expansion joints, façade penetrations, glazing rebates, and movement joints, the Sikaseal 414 backer rod supports correct sealant geometry — preventing three-sided adhesion, promoting correct depth-to-width ratios, and helping sealants move freely with the structure. Its closed-cell construction resists water ingress and maintains its shape over time, offering excellent durability in internal and external applications.

Why Professionals Choose Sikaseal 414:

• Full spectrum of diameters for accurate joint filling, 6 sizes 10mm 13mm 15mm 20mm 25mm and 30mm

• High-roll-length packaging delivers cost efficiency for large projects

• Enhances sealant performance and lifespan by controlling bead depth

• Compatible with all normal sealants, silicone, polyurethane and hybrid polymers used in construction and manufacturing

• Ideal for building joints construction movement joints , glazing, refurbishment and maintenance trades

Whether working on new build, retrofit, or maintenance jobs, the Sikaseal 414 backer rod is a vital accessory for achieving long-lasting, flexible, and watertight seals.