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Sika Sikadur Combiflex SG Kit
High performance joint sealing system for construction, expansion and connection joints as well as for cracks. When fixed to the joint, allows irregular and high movement in more than one direction, while maintaining a high quality seal. The Sikadur Combiflex SG System consists of a modified flexible Polyolefin (FPO) waterproofing tape with advanced adhesion using Sikadur 31, Hi-Mod Gel (1:1 Mix Ratio).
- Advanced adhesion, no activation of tape required
- Easy to install
- Suitable for both dry and damp concrete surfaces
$243.28
Availability:
Out of stock
SKU
19098
Sika Sikadur Combiflex SG Kit – High Movement Joint Sealing System
The Sika Sikadur Combiflex SG Kit is a high-performance joint sealing system designed to handle extreme movement in construction, expansion, and connection joints, as well as cracks. The system features a modified flexible polyolefin (FPO) waterproofing tape adhered with Sikadur®-31 Hi-Mod Gel, delivering excellent adhesion and water resistance. Ideal for both new construction and repair work, it provides a durable solution for complex and high-movement joints.
Key Features:
- Handles irregular and multi-directional joint movement
- Strong adhesion without the need for tape activation
- Suitable for dry and damp concrete surfaces
- Resistant to water, chemicals, and weathering
- Compatible with potable water applications (UL Listed)
- Performs in temperatures down to -40°F
Applications:
- Expansion, construction, and connection joints
- Crack sealing in tunnels, basements, and reservoirs
- Hydroelectric plants, swimming pools, and culverts
- Restoration of failed joint systems like waterbars
- Joints subject to extreme movement or differential settlement
- Sealing around concrete and steel pipe penetrations
Technical Specifications
| Adhesive Type | Sikadur 31, Hi-Mod Gel (1:1 Mix Ratio) |
| Tape Material | Flexible Polyolefin (FPO) |
| Tensile Strength (ASTM D-412) | > 1,740 psi |
| Elongation at Break | > 600% |
| Tear Resistance | 69 lb/in (ASTM D-624 Die C) |
| Pot Life (Adhesive) | ~60 minutes at 73°F |
| Tack-Free Time | 1.5–2.5 hours |
| Service Temperature | -40°F and up |
| Chemical Resistance | Resistant to water, salt solutions, sewage, diluted acids |
| Shelf Life | 2 years (unopened) |
Frequently Asked Questions
What comes in the Sikadur Combiflex SG Kit?
Each kit includes a 4-inch x 20-ft roll of Combiflex SG tape and 60 oz of Sikadur 31 Hi-Mod Gel adhesive.
Can the system be used on damp concrete?
Yes, it adheres well to both dry and damp surfaces.
Is the tape activated before installation?
No activation is required on site — installation is direct and simple.
Can it handle water pressure?
Yes, but the tape must be mechanically supported in the joint to resist negative pressure.
Is this approved for drinking water contact?
Yes, the system is UL listed for potable water use.
| Brand | Sika |
|---|---|
| Manufacturer | Sika |
