Sika Sikaflex-112 Crystal Clear construction adhesive transparent adhesive and sealant 290 ml
€11.49
- Cures 100 % transparent – bonded and sealed joints stay invisible
- Adheres to wood, metal, ceramics, rigid PVC, concrete and masonry
- Permanently elastic with 400 % elongation at break, serviceable from −40 to +70 °C
- Very low emissions to EMICODE EC1Plus – good for living spaces
- 14 days right of withdrawal
- Expert advice: 02831 9167703 Mon–Thu 9–16, Fri 9–12 (CET)
- Specialist dealer in Kevelaer, Lower Rhine
Description
Sikaflex-112 Crystal Clear is an elastic adhesive and sealant based on a silane-terminated polymer (STP) for decorative bonding and visible joints. It cures 100 % transparent and is tested to EN 15651-1 (F-EXT-INT CC 20HM) and ISO 11600 (F 20 HM). The 290 ml cartridge fits any standard caulking gun and is aimed at tradespeople and DIY users.
Benefits at a glance
- Invisible bond: crystal clear after curing, even in front of light or coloured surfaces.
- Bonding and sealing with one product: can be used as a construction adhesive and as a joint sealant for partition walls and metal and timber structures.
- Stays elastic: 400 % elongation at break, Shore A hardness 48 and 20 % permissible total deformation compensate for movement.
- Suitable for living spaces: EMICODE EC1Plus, very low emissions.
- Fast working: skin after approx. 30 minutes, through-curing around 3 mm in 24 hours at 23 °C and 50 % humidity.
Areas of application
- Bonding decorative mouldings, profiles, signs and decorative elements to concrete, masonry, ceramics, wood, metal and rigid PVC
- Visible vertical and horizontal joints on partition walls
- Connection and sealing joints on metal and timber structures
- Indoor areas and sheltered outdoor areas without direct weathering
Limits & notes
Sikaflex-112 Crystal Clear is not suitable for floor joints, swimming pool joints, joints with permanent water exposure, glass sealing, structural glazing and natural stone. Under moisture exposure the transparency may be lost. Not on rusting steel; on PE, PP, Teflon, bitumen and EPDM only after a preliminary test. For floor joints a floor joint sealant is the right choice, for natural stone joints a natural stone silicone.
Hazard statements: Warning. May cause an allergic skin reaction. Causes serious eye irritation. Harmful to aquatic life with long lasting effects. Safety data sheet available from the manufacturer.
Application & tips
Prepare the substrate so that it is sound, clean, dry and free of grease. Pre-treat smooth, non-absorbent surfaces such as glazed tiles, stainless steel or PVC with Sika Adhesion Cleaner-1 and allow 15 minutes to flash off; prime absorbent substrates such as concrete or render with Sika Primer-3 N. For bonding, apply as a bead or in dots, press the component on and fix it if necessary. Form joints 6 to 20 mm wide with a width to depth ratio of 2:1, backfill with a PE backer rod if necessary and tool. According to the safety data sheet, avoid skin contact and wear protective gloves and eye protection. Apply at +5 to +40 °C air and substrate temperature. Remove fresh material with Sika Remover-208, cured material only mechanically. Shelf life 12 months unopened; store dry at +5 to +25 °C.
Technical data
| Area of use: | Interior |
|---|---|
| Colour: | transparent |
| Content: | 290 ml |
| Material: | Hybrid polymer |
| Pack size: | 290ml cartridge |
| Technical data | |
|---|---|
| Base: | 1-component, moisture-curing silane-terminated polymer (STP) |
| Standards: | EN 15651-1 F-EXT-INT CC 20HM; ISO 11600 F 20 HM |
| Emission class: | EMICODE EC1Plus |
| Shore A hardness: | 48 (after 28 days) |
| Elongation at break: | 400 % |
| Permissible total joint movement: | 20 % |
| Application | |
| Skin formation time: | approx. 30 min (23 °C / 50 % RH) |
| Through-curing: | 3 mm / 24 h (23 °C / 50 % RH) |
| Application temperature: | +5 °C to +40 °C |
| Use | |
| Service temperature: | −40 °C to +70 °C |
| Yield: | approx. 15 m bead (5 mm nozzle) or approx. 100 adhesive dots per cartridge |
| What's included | |
| Supplied as: | 290 ml cartridge; can be stored for 12 months at +5 to +25 °C |
Frequently asked questions
Does Sikaflex-112 Crystal Clear really stay see-through?
Yes, it cures 100 % transparent. With permanent moisture the transparency may decrease, so use it only indoors or in sheltered outdoor areas.
How far does one cartridge go?
According to the data sheet, about 15 running metres of bead with a 5 mm nozzle or around 100 adhesive dots with a diameter of 30 mm and a thickness of 4 mm.
Can I use it to seal a shower joint?
No, Sika excludes joints with permanent water exposure. A sanitary silicone is the right choice for that.
Data sheets
Data sheets and documents
All documents come unchanged from the manufacturer.
Manufacturer information
Manufacturer information pursuant to Art. 19 EU GPSR
Postal address
Sika Deutschland CH AG & Co KG
Kornwestheimer Straße 103-107
70439 Stuttgart
Germany
Electronic address info@de.sika.com
Information as of: 2026-09-18
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