Substrate · GLASS
Adhesives for bonding glass
A clear bond on glass is made with a MightyLoc Krystal UV adhesive: Krystal 4000 for glass face-to-face and T-type joints, and Krystal 5000 for glass to glass and glass to stainless steel. AFT acrylic foam tapes bond glass to metal in signage, display and fitting work (not structural glazing), and flexible sealed joints take Taftflex 6292 polyurethane or TaftGrip MS polymer.
Recommended products
MightyLoc products for bonding Glass
AFT 1080GF
Acrylic Foam Tape
AFT 1120GF
Acrylic Foam Tape
AFT 1200GF
Acrylic Foam Tape
AFT 2064WF
Acrylic Foam Tape
AFT 2120WF
Acrylic Foam Tape
AFT 3100CF
Acrylic Foam Tape
Krystal 2000
UV Adhesive
Krystal 3000
UV Adhesive
Krystal 4000
UV Adhesive
Krystal 5000
UV Adhesive
Taftbond 5 Minutes Epoxy
5 Minutes Epoxy
Taftflex 6221
Polyurethane Sealant
Taftflex 6292
Polyurethane Sealant
TaftGrip
MS Polymer
Not sure which to choose?
Tell us your substrates and service conditions; we will point you to the right chemistry.
Talk to our teamFAQ · GLASS
Questions about bonding glass.
For a clear bond on glass, Krystal 2000, 3000, 4000 and 5000 UV adhesives cure under 365 nm UV light: Krystal 4000 for glass face-to-face and T-type joints, Krystal 5000 for glass to glass and glass to stainless steel. AFT acrylic foam tapes, Taftflex 6292 and TaftGrip MS polymer also list glass as a bonding substrate.
Clean and dry the glass thoroughly so it is free of dust, oil, grease and residue. For AFT tapes use IPA for general cleaning; for Taftgrip and Taftflex, a solvent such as acetone is recommended before applying the bead.
The Krystal UV adhesives are designed for high adhesion and clarity and cure within seconds under a correct 365nm UV light source, which makes them suited to visible glass bond lines.
Which MightyLoc products bond glass?
For clear, high-clarity glass bonds, use Krystal 2000 or 3000, Krystal 4000 for glass face-to-face and T-type joints, or Krystal 5000 for glass to glass and glass to stainless steel; all cure under a 365 nm UV light source; the light must reach the bond line through the glass. AFT acrylic foam tapes list glass among their substrates and are used in signage and metal fabrication. Taftflex 6292 polyurethane sealant and Taftgrip MS polymer also bond glass and suit elastic, weather-resistant joints.
How do you prepare a glass surface?
For AFT tapes, clean and dry the glass thoroughly before application and remove all dust, dirt, oil, grease and residue, using IPA for general cleaning. For Taftgrip and Taftflex sealants, surfaces should be free of dirt, oil and other contaminants, and cleaning with a solvent such as acetone is recommended. Contaminated surfaces reduce adhesion.
How do you choose a chemistry for glass?
Krystal UV adhesives are best where you need a fast, ultra-clear bond and can apply UV light to the joint. AFT tapes suit panel and sign bonding where a foam tape can absorb expansion between dissimilar materials. Taftflex and Taftgrip suit flexible sealed joints rather than rigid structural bonds.
| Joint | Product | Deciding fact |
|---|---|---|
| Glass face-to-face or T-joint, clear | Krystal 4000 | 45 to 65 cps; made for glass face-to-face and T-type joints; cures in 10 to 15 s at 365 nm and 1500 to 3000 mJ/cm2 |
| Glass to glass or glass to stainless steel | Krystal 5000 | 80 to 130 cps; shear strength 131 kg/cm2 glass to stainless steel, 118 kg/cm2 glass to glass |
| Tight joint that must wick in | Krystal 3000 or Krystal 5000 | 5 to 15 cps (3000); capillary penetration, glass grade (5000) |
| Clear panel or face to a frame | AFT 3100CF | 1.0 mm clear foam tape listed for glass and PMMA; service -10 to 90 °C |
| Flexible sealed joint | Taftflex 6292, TaftGrip | Elastic; solvent-clean first; shield the bond line from sunlight through the glass |
For light access, clarity and shadowed areas, see the guide How to choose a UV adhesive for glass and clear plastics.