Krystal 4000 is a low-viscosity UV adhesive that cures in seconds under ultraviolet (365nm) or visible (436nm) light. Its high permeability suits glass face-to-face and T-type bonding, and it can be applied by penetration for a clean glue line.
PRODUCTS · UV ADHESIVE
Krystal 4000 low-viscosity UV glue for glass
Low-viscosity UV adhesive that cures in seconds for clear glass face-to-face and T-type bonding.
Sibling products: Krystal 1000 Krystal 2000 Krystal 3000 Krystal 5000
Chemistry: UV Adhesive
Guide: How to choose a UV adhesive for glass and clear plastics
UV AdhesiveGlass
Service temp
-40 to 100 °C
Cure speed
On UV exposure
Headline properties for Krystal 4000. Full specification is available on request.
Specifications last reviewed
Specifications
| SKU | 4000 |
|---|---|
| Chemistry | Acrylic resin |
| Appearance | Colourless |
| Viscosity | 45-65 cps (at 25°C, S14 100 rpm) |
| Fixture time | On UV exposure |
| Full cure | 10-15 s under 365 nm UV |
| Service temperature | -40 to 100 °C |
| Shelf life | 1 year (stored 15 to 25°C) |
| Packaging | 50 mL and 1 litre anti-UV bottle |
Substrate compatibility
- Glass
Technical Data Sheet
Download the current Technical Data Sheet for full specification, handling, and cure data. The complete TDS library cross-references every MightyLoc family by chemistry, substrate, and service window.
Compliance
RoHS statements and Safety Data Sheets for this product are available on request. Contact the MightyLoc team and we will send the current documents.
Glass bonding · 3 points
01 / 03
Apply to the joint
Run a thin film of Krystal 4000 along the glass joint and close the parts. Its low 45-65 cps viscosity lets it flow into the joint before a 365nm UV lamp cures it through the clear glass in about 10 to 15 seconds.
02 / 03
UV cure
Align the parts while the film is still wet, since it stays workable until light reaches it. Hold the UV lamp close over the joint at 365nm, or use visible light at 436nm, so the bond fixtures in seconds.
03 / 03
Face-to-face and T-type bonds
Suited to glass face-to-face and T-type joints, and can be applied by penetration. The colourless film cures clear with a refractive index of 1.46, so the glue line stays discreet.
Tap a point on the image to see where and how to apply.
Display & crafts · 3 points
01 / 03
Invisible joints
Bond glass and clear display parts so the join disappears into the material. Krystal 4000 is colourless and cures clear, with 0% solvent so there is no haze or shrinkage.
02 / 03
Clear assemblies
Keep the film thin and even across the mating face. Because Krystal 4000 is solvent free, the cured bond stays optically clear with almost no visible glue line.
03 / 03
High clarity work
Suited to intricate glass display and award work where clarity matters. The low viscosity flows into fine joints, and the cured film holds from -40 C to 100 C.
Tap a point on the image to see where and how to apply.
Application guidance last reviewed
Technical tools: Cure-time guide Service-temperature guide Substrate-pair selector
Frequently asked questions
Krystal 4000 is made for glass bonding, including glass face-to-face and T-type joints. Its low viscosity and high permeability give a clean glue line.
It cures under ultraviolet light at 365nm or visible light at 436nm. A typical cure takes about 10 to 15 seconds at a UV intensity of 1500 to 3000 mj/cm2.
Krystal 4000 has a low viscosity of 45-65 cps, measured at 25 C on an S14 spindle at 100 rpm, per the Vitrochem TDS. It is much thinner than Krystal 1000, so it wicks into tight glass joints by capillary action where the adhesive needs to flow into a fine glue line.
Cured Krystal 4000 has a service temperature range of -40 C to 100 C per the Vitrochem TDS. The cured film reaches Shore D 70 hardness, with good thermal and shock resistance for bonded glass assemblies within that range.
Krystal 4000 is colourless and cures to a clear film with a refractive index of 1.46, close to common glass, so bond lines stay discreet. This optical clarity is why it is used for visible glass face-to-face and T-type joints.
No. Krystal 4000 has 0% solvent content per the Vitrochem TDS, so nothing evaporates during cure. This keeps shrinkage low and avoids haze or residue on a clear glass bond.
Krystal 4000 has a 1-year shelf life in its original unopened container when stored between 15 C and 25 C, away from direct light. It is supplied in 50 mL and 1 litre anti-UV bottles, which shield the adhesive from stray light that could start a premature cure.
Because of its low viscosity, Krystal 4000 can be applied by the penetration method: the parts are positioned first, then the adhesive is run along the joint line, where it wicks into the joint before the UV light is applied. This gives a clean, even glue line.