Weld-On® 4 – Legacy MC-Based Acrylic Cement

Description

This product is in the process of being discontinued. The replacement for this product is Weld-On #4 Clear Acrylic Plastic Cement – DCM & TCE Free.

IPS Weld-On® 4 Acrylic Cement is a water-thin, fast-drying plastic adhesive designed for clear, high-strength bonding of cast and extruded acrylic (PMMA). Commonly used in sign fabrication, display assembly, and medical equipment manufacturing, Weld-On 4 creates seamless, durable bonds using the capillary or soak method.

⚠️ Important Notice – Legacy MC-Based Formula ⚠️

This version of Weld-On® 4 contains methylene chloride (MC) — a regulated chemical classified as a likely human carcinogen and subject to EPA and OSHA restrictionsweldon 4 legacy.

• Production ends: July 31, 2025

• Sales deadline: January 28, 2026

• Extended use allowed only with a Workplace Chemical Protection Plan (WCPP) through April 28, 2034

A fully compliant DCM & TCE Free version is now available with the same viscosity, bonding speed, and strength.
Shop Weld-On® 4 DCM & TCE Free

Key Features & Benefits

• Fast, permanent bonding – Initial bond forms in minutes, reaching 80% strength in 3 minutes and full cure in 72 hours

• 1–2 minute working time – Allows for precise part positioning before final adhesion

• Blush-resistant formula – Minimizes white marks (blushing) for a professional, crystal-clear finish

• Versatile applications – Ideal for trim capping, display fabrication, and plastic container assembly

• Capillary action for precision – Flows effortlessly into tight joints for seamless, high-strength bonds

• Industrial-grade performance – Designed for manufacturers, fabricators, and sign makers

Technical Specifications

• Substrate Compatibility: Cast & extruded acrylic (not for cross-linked acrylic)

• Color: Clear

• Working Time: 1–2 minutes

• Fixture Time: 3 minutes

• Full Cure Time: 72 hours

• Shelf Life: 2 years (sealed container)

• Available Sizes: ¼ pint, pint, quart, and gallon cans

Ideal Applications

• Acrylic letters to flat presentation panels

• Display and presentation cases

• Medical equipment assembly

• Trim capping of cutout letters

• Plastic containers and pre-forms

• Solvent welded structures and subassemblies

Why Choose Weld-On 4?

For professionals in sign fabrication, general manufacturing, and plastic assembly, IPS Weld-On 4 delivers fast, reliable bonding with minimal surface marking. Its superior capillary action, 1–2 minute working time, and blush resistance make it the preferred choice for optically clear, high-strength joints.

Order Today

Act now while inventory lasts.
Order the legacy MC-based version before January 2026, or transition to the DCM & TCE Free formula to ensure long-term compliance.
For help with product selection or SDS guidance, contact [email protected].