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SG46C

High strength adhesive for high-clarity bonding applications

SCIGRIP SG46C is a high-performance, translucent acrylic adhesive designed for assembly and fabrication applications requiring invisible bond lines with no read through.

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SCIGRIP SG46C methacrylate adhesive cartridge
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Overview

Engineered to bond primerless aluminum or other metals to acrylics, polycarbonate, and other plastics, it is trusted by manufacturers in the sign industry and fabrication sectors worldwide.

From bonding metal frames to acrylic panels and assembling display cases to manufacturing electrical equipment, SCIGRIP 46C delivers strength, clarity, and reliability where invisible bond lines matter most.

With UL 746C approval for use in electrical equipment assemblies for indoor and outdoor signage applications, it meets stringent quality standards while offering exceptional clarity retention, short fixture times, and a translucent cure that eliminates bond line read through.

Two metal sections bonded end to end on a blue background

Features and benefits

Fast curing

Translucent cure

Cures translucent with no bond line read through - creates invisible, flawless-looking bonds perfect for display applications.

Surface preparation

Surface preparation

Primerless metal bonding - solvent cleaning not required on most metals, saving time and prep work.

Strong bonding

Bonds

Formulated for bonding aluminum, steel, stainless steel, acrylic, polycarbonate, PVC, and FRP. Excellent for metal-to-plastic bonding.

Working time

Working times

Short working (6-9 minutes) and fixture times (15-25 minutes) - less waiting when assembling multi-stage projects.

Sag resistance

Sag

No-sag application - reduced slide or sag even on inverted surfaces, perfect for vertical assemblies.

Certified quality

Quality

High bond strength - up to 2,200 lbs/in² after 24 hours on aluminum. Strong, reliable bonds that last.

Clarity

Clarity retention

Good clarity retention - maintains visual quality over time, essential for display and sign applications.

UL approved

UL Approved

UL 746C approved for electrical equipment assemblies for indoor and outdoor signage (File E322348).

Recommended use

Sign and display fabrication – Proven performance for bonding acrylic to aluminum frames, creating museum-quality display cases, point-of-sale displays, and illuminated signage where invisible bond lines are essential.

Electrical equipment assembly – UL 746C approved for indoor and outdoor signage applications, making it ideal for bonding components in electrical signs and display equipment that require certification.

Manufacturing and fabrication – Widely used for bonding metal frames to plastic panels, assembling multi-material components, and creating products where aesthetic appearance and bond line invisibility are critical.

Metal-to-acrylic bonding specialist – Exceptional performance bonding aluminum, steel, and stainless steel to acrylic, polycarbonate, and other clear plastics without visible bond lines or finishing requirements.

Aquarium and display case manufacturing – Perfect for creating high-quality aquariums, museum cases, and protective displays where clarity, strength, and invisible bonds are essential for professional results.

UL Recognized Component mark

Recommended bonding

Wide variety of metals and plastics

Product properties (In Minutes)

Cartridge Adhesive Activator Working Time Fixture Time
SG46C SG46CA SG46CB 6 - 9 15 - 25
Cartridge
SG46C
Adhesive
SG46CA
Activator
SG46CB
Working Time
6 - 9
Fixture Time
15 - 25

Typical adhesive characteristics @75°F (24°C)

SCIGRIP 46C - uncured Part A Adhesive Part B Activator A+B Mix
Color Purple Translucent Cures Clear
Mix ratio/volume 10 1 -
Mix ratio/weight 8.5 1 -
Density, g/cc 0.99 1.17 0.96
Density, lb/gallon 8.25 9.73 8.38
Viscosity, cps1 75,000 - 125,000 10,000 - 20,000 -
SCIGRIP 46C - uncured
Color
Mix ratio/volume
Mix ratio/weight
Density, g/cc
Density, lb/gallon
Viscosity, cps1
Part A Adhesive
Purple
10
8.5
0.99
8.25
75,000 - 125,000
Part B Activator
Translucent
1
1
1.17
9.73
10,000 - 20,000
A+B Mix
Cures Clear
-
-
0.96
8.38
-

Typical bond strength

Substrate Aged Bond Strength, lbs/in2 (MPa) - 24 Hours Failure mode
Aluminum 2,200 (15.2) Thin Layer Cohesive
Cold Rolled Steel 2,200 (15.2) Cohesive
Stainless Steel 1,900 (13.1) Thin Layer Cohesive
Acrylic 800 (5.5) Substrate Break
Polycarbonate 750 (5.2) Substrate Break
PVC 600 (4.1) Substrate Break
VEFRP 1,800 (12.4) Fiber Tear
Aluminum to Acrylic 800 (5.5) Substrate Break (Acrylic)
Cold Rolled Steel to Acrylic 800 (5.5) Substrate Break (Acrylic
Polycarbonate to Acrylic 800 (5.5) Substrate Break (Acrylic)
Substrate
Aluminum
Cold Rolled Steel
Stainless Steel
Acrylic
Polycarbonate
PVC
VEFRP
Aluminum to Acrylic
Cold Rolled Steel to Acrylic
Polycarbonate to Acrylic
Aged Bond Strength, lbs/in2 (MPa) - 24 Hours
2,200 (15.2)
2,200 (15.2)
1,900 (13.1)
800 (5.5)
750 (5.2)
600 (4.1)
1,800 (12.4)
800 (5.5)
800 (5.5)
800 (5.5)
Failure mode
Thin Layer Cohesive
Cohesive
Thin Layer Cohesive
Substrate Break
Substrate Break
Substrate Break
Fiber Tear
Substrate Break (Acrylic)
Substrate Break (Acrylic
Substrate Break (Acrylic)

Downloads

Technical Data Sheet (TDS)

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Related case studies

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Interested in the SG42 series?

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+44 (0) 191 259 0033

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[email protected]
+1 919 598 2400

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