SIKA · AUTHORIZED PROJECT DISTRIBUTOR · SPACE ARC ENGINEERING
SikaProof-315 HDPE SG IN
Thicker pre-applied, fully bonded sand-coated HDPE membrane for below-ground structures
Product Overview
SikaProof-315 HDPE SG IN is a pre-applied, fully bonded waterproofing membrane comprising a virgin HDPE film, a high-bond adhesive and a weather-resistant sand-sprinkled protective layer. The sheet is rolled out over the prepared substrate or formwork ahead of steel fixing; once concrete is placed, the adhesive grips the fresh matrix to form a permanent, watertight bond that prevents groundwater tracking around the structure. Its heavier build gives added robustness during reinforcement and concreting works. Typical applications include basements, subways, tunnels, base slabs, walls, footings and precast elements. Space Arc Engineering, the authorized Sika distributor in India, offers this membrane along with site-level technical assistance for infrastructure, industrial, commercial and residential projects.
Features & Benefits
- Heavier HDPE film (>1.10 mm) for greater durability under site traffic
- Forms a permanent, fully bonded seal with cast-in-place concrete
- Sand-sprinkled face protects the adhesive and aids concrete keying
- Elongation at break >=500% to accommodate cracking and movement
- Made from virgin, non-recycled HDPE for consistent long-term performance
- Blocks lateral water migration around the entire buried envelope
Technical Highlights
| Coverage | Available in 20 m rolls of 1.2 m, 1.5 m or 2.0 m width; allow for side and end laps per the TDS. |
| Strength | Tensile strength >=25 MPa, static puncture resistance >=1000 N and joint peel resistance >=1500 N/m. |
| Performance | Delivers a permanent monolithic bond to concrete that stops water tracking even at localised defects. |
| Application Conditions | Install between +5 C and +40 C ambient and substrate; place concrete within 45 days of laying. |
| Packaging | HDPE film >1.10 mm, full membrane composite >1.50 mm, supplied in 20 m rolls. |
Applications
- Highway and rail tunnel invert and wall waterproofing
- Industrial basement slabs and below-grade tank rooms
- Commercial mixed-use raft foundations under high water pressure
- Precast box-section and segmental structure protection
- Residential deep-basement floors and grade slabs
SPACE ARC ENGINEERING · AUTHORIZED DISTRIBUTOR
Product image & sample available on request
Technical Data
| Type | Pre-applied, fully bonded HDPE sheet membrane |
| Base | Virgin HDPE with adhesive layer and sand topping |
| Film / composite | Film >1.10 mm; composite >1.50 mm |
| Strength | Tensile >=25 MPa; puncture >=1000 N |
| Roll size | 20 m length; 1.2 / 1.5 / 2.0 m width |
| Application temp. | +5 C to +40 C |
Datasheet & Documents
Request the Technical Data Sheet, method statement and safety data sheet from Space Arc Engineering.
Request Quote / Availability
+91 9999155255
+91 7290089007
info@space-arc.com
Frequently Asked Questions
How is SikaProof-315 HDPE SG IN different from the 312 grade?
The 315 grade is a heavier build, with an HDPE film over 1.10 mm and a composite thickness over 1.50 mm, giving added robustness for demanding below-ground waterproofing.
Can it be installed on formwork?
Yes. The membrane can be loose-laid on a prepared substrate or fixed against vertical formwork before reinforcement and concreting; the adhesive bonds when concrete is cast.
What is its puncture resistance?
Static puncture resistance is rated at >=1000 N, which helps the sheet survive reinforcement fixing and concreting. Refer to the TDS for full mechanical data.
Does it need a protective screed?
Because it bonds fully to the structure and carries a protective sand face, handling differs from loose-laid systems; follow the TDS for protection and detailing requirements.
Who distributes SikaProof-315 HDPE SG IN in India?
Space Arc Engineering is an authorized Sika distributor in India. Reach the team at +91 9999155255 or info@space-arc.com for quotes and technical support.
Related Products
- SikaProof-315 HDPE SG W IN — W variant of the 315 membrane for the same below-ground applications.
- SikaProof-312 HDPE SG IN — Lighter-gauge pre-applied HDPE membrane from the same range.
- SikaSwell A — Hydrophilic joint sealing profile to complement membrane detailing.
- Sika Injection-201 IN — Injection resin for sealing any remedial leaks in bonded structures.
Buy SikaProof-315 HDPE SG IN — Sika Distributor in India
Space Arc Engineering is an Authorized Project Distributor supplying Sika products for infrastructure, industrial, commercial and residential projects across India.
+91 9999155255 | +91 7290089007 | info@space-arc.com
Related waterproofing products
Other waterproofing systems we supply & apply across Delhi NCR and pan-India.