H668Acid glass silicone sealant
An acetic-cure silicone for large plate glass and architectural glazing, holding adhesion under movement and weathering.

At a glance
Key figures
280 ml, 24 pcs/ctnNet weight
10–15 minutes (at 25°C)Skinning time
−40°C to +120°CService temperature
+5°C to +40°CApplication temperature
Technical data sheet
H668 specifications
| Property | Value |
|---|---|
| Appearance | Smooth paste, uniform consistency |
| Density (20°C) | 1.02 ± 0.05 g/cm³ |
| Curing method | Acetic cure, room temperature |
| Skinning time | 10–15 minutes (at 25°C) |
| Curing time | 24 hours for standard bead |
| Application temperature | +5°C to +40°C |
| Service temperature | −40°C to +120°C |
| Tensile strength | ≥1.0 MPa |
| Elongation at break | ≥250% |
| Shore A hardness | 25–30 |
| Water / UV / ozone resistance | Excellent |
| Color | Clear, white, grey or customizable |
| Net weight | 280 ml, 24 pcs/ctn |
Values as published in the product datasheet and on the packaging. Typical values, not a specification. Always run a compatibility and adhesion test on the actual substrate before full application.
Features
What it does
Single componentReady to use, no mixing required.
Acetic cureRoom-temperature cure to a strong, elastic seal.
High elasticity and toughnessMaintains adhesion under movement or stress.
Strong adhesionBonds to most building materials including glass, metal and ceramics.
Fast curingQuick cure speed for efficient application.
Durable performanceResists water, weather, aging and extreme temperature.
Applications
Where it goes
- Large glass panels, aquariums, sliding doors, stainless steel
- Kitchens, bathrooms, sunrooms, canopies, doors, windows, ceilings
- Glass display cabinets, shop windows, signage
- General decorative glass bonding and sealing
Not sure this is the right grade?
Send us the substrate and joint width — we will name one.
Same range
Other grades in this range
Compare the figures before you decide.

BY-808
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NET · 300 ml, 24 pcs/ctn
Shelf life · 12 months (below 27°C)
Shelf life · 12 months (below 27°C)

BY-708
Acid glass silicone sealant
NET · 300 ml, 24 pcs/ctn
Shelf life · 12 months (below 27°C)
Shelf life · 12 months (below 27°C)

BY-608
Acid silicone sealant for interiors
Curing method · Acetic cure, room temperature
Skinning time · ~20 minutes
Skinning time · ~20 minutes

H768
Acid glass silicone sealant
Curing method · Acetic cure, room temperature
Skinning time · 10–15 minutes (at 25°C)
Skinning time · 10–15 minutes (at 25°C)

H568
Fast-cure acid glass silicone sealant
Curing method · Acetic, fast-curing at room temperature
Skinning time · 5–10 minutes (at 25°C)
Skinning time · 5–10 minutes (at 25°C)
Enquiries
Order H668
Tell us the volume and destination port. You get a datasheet and a price, usually within 24 hours.

