Weld-On (SciGrip) 46C Translucent Acrylic Adhesive for Primer-Less Bonding of Aluminum, Metals, and Acrylics – 6 to 9 Minute Working Time – 50mL and 490mL 10:1 Mix Ratio

Description

SCIGRIP Weld-On 46C is a two-component, translucent, thixotropic acrylic adhesive designed for the seamless, primer-less bonding of metals and plastics. Unlike opaque structural adhesives, Weld-On 46C cures to a translucent finish, eliminating bond line “read-through” and making it the premier choice for sign assembly and display manufacturing where aesthetics are critical. Formulated with a 10:1 mix ratio, it offers a fast working time of 4-6 minutes and achieves fixture strength in just 15-20 minutes. It provides high-strength structural bonds on aluminum, cold rolled steel, acrylics, and polycarbonates without the need for sagging or complex surface preparation.

Because Weld-On 46C cures to a translucent finish, it is the superior choice for visible joints in signs and displays where aesthetics are critical and bond lines must be minimized. For purely structural joints where the adhesive line is completely hidden and color does not matter, consider its sister product, Weld-On 45 (Tan/Opaque).

Key Features & Specifications

Engineered for aesthetic precision and structural strength, Weld-On 46C simplifies the assembly of clear and translucent materials with a seamless finish and reliable performance.

• Mix Ratio: 10:1 (Requires 10:1 dispensing gun & plunger)

• Working Time: 4 6 Minutes (at 75F / 24C)

• Fixture Time: ~20 25 Minutes (Time to handle parts)

• Full Cure: 24 Hours

• Adhesive Color: Translucent / Hazy Clear

• Viscosity: ~140,000 cps (Thixotropic Gel – Non-Sag)

• Tensile Strength: ~2,200+ PSI (Aluminum); Substrate failure on many plastics

• Temperature Range: Serviceable from -40F to 180F (-40C to 82C)

Unique Capabilities

• Invisible Structural Bonding: Unlike opaque adhesives that leave dark lines, this translucent formula blends into the substrate, preventing “bond line read-through” on backlit signs and clear displays.

• Primer-Less Metal Bonding: Aggressively bonds raw metals (aluminum, steel) to plastics without the need for time-consuming sanding or chemical priming.

• Non-Sag Thixotropic Gel: The adhesive stays where you put it, even on vertical surfaces or overhead joints, without dripping or running.

• High Impact & Peel Strength: The cured bond retains toughness, allowing it to withstand vibration, impact, and the differential expansion between metal frames and plastic panels.

Compatible Surfaces

Weld-On 46C is specifically formulated for high-strength bonding of dissimilar materials, particularly metal-to-plastic assemblies.

Metals:

• Aluminum (Raw, Painted, & Anodized)

• Cold Rolled Steel (CRS)

• Stainless Steel

• Galvanized Metal (Prepare surfaces)

Plastics & Composites:

• Acrylics (PMMA)

• Polycarbonate

• PVC & Vinyl

• ABS

• Butyrate

• PETG

• Fiberglass

Other Surfaces:

• Gelcoats

• Polyester

• Styrenics

Trusted By Industries

From high-end retail displays to architectural signage, Weld-On 46C is the industry standard for:

• Sign & Display: Bonding trim caps to polycarbonate letters and attaching aluminum frames to acrylic panels without visible fasteners.

• Plastic Fabrication: Creating seamless shadow boxes, museum cases, and retail fixtures.

• Transportation: Bonding interior lighting components and aesthetic trim in specialty vehicles.

• General Assembly: Joining metal brackets to plastic housings where a clean, professional finish is required.

Compliance & Certifications

• UL 746C Polymeric Adhesive Systems: Recognized for use in electrical equipment.

• VOC Compliant: Meets low VOC requirements.

• RoHS Compliant: Free of hazardous substances.

• Manufactured under IPS quality assurance program.

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