Heckmann 354 Neoprene Expansion Joint Filler – 3" × 50' Roll

DURABLE NEOPRENE JOINT FILLER FOR EXPANSION CONTROL

Neoprene Expansion Joints are designed to accommodate movement in masonry walls while preventing mortar from clogging critical expansion space. Suitable for both vertical and horizontal applications, these flexible joint fillers maintain clean, functional joints and help absorb thermal and structural movement over time. Available with or without adhesive backing, each roll provides a reliable solution for expansion joint protection in concrete masonry construction.

FEATURES

• Prevents mortar clogging – Maintains clear, functional expansion joints during construction

• Supports movement – Absorbs thermal and structural expansion and contraction

• Versatile application – Use in vertical or horizontal joints for maximum flexibility

• Durable neoprene rubber – Resists aging, cracking, and moisture intrusion

• Adhesive-backed option – Simplifies installation and reduces shifting during placement

• Multiple thicknesses – Choose from 1/4", 3/8", or 1/2" to match project requirements

DIMENSIONS

• Width: 3"

• Length: 50 feet per roll

• Thickness: 1/4", 3/8", or 1/2"

MATERIAL TYPE

• Neoprene Rubber

PACKAGE QUANTITY

• 1 roll (50 linear feet)

RESOURCES

• 354 Submittal Sheet
• 354 Specification