Wind turbine blade materials
JGN812 Wind Turbine Blade Bonding Adhesive
A two-component structural epoxy adhesive formulated for high-load bonding in wind turbine blade shells, shear webs and composite assemblies. The supplied product manual positions the system for high fatigue demand, controlled sag and long working time.

Recommended uses
Where this material fits.
- Wind turbine blade shell bonding
- Shear web installation
- Composite structural joints
- Large-gap bonding and blade repair subject to qualification
Performance benefits
What the system is designed to deliver.
- 3:1 component ratio
- High flexural and tensile-shear performance positioning
- Sag resistance for thick bond lines
- Fatigue and environmental conditioning requirements in the supplied manual
Technical data
Requirements and reported values, separated.
“Requirement” is the stated acceptance threshold or range. “Actual result”, “typical value” and “published value” are not guaranteed minima unless the requirement column says so. Final acceptance must follow the approved TDS, report, test method and project conditions.
| Property | Minimum / specified requirement | Typical / reported value | Test method / source |
|---|---|---|---|
| Mix ratio by mass | A:B = 3:1 | — | Supplied Chinese product manual |
| Glass-transition temperature by extrapolation | ≥120°C | — | Supplied Chinese product manual; confirm current method and cured state |
| Flexural strength | ≥65 MPa | — | Supplied Chinese product manual |
| Volumetric shrinkage | ≤4% | — | Supplied Chinese product manual |
| Fatigue endurance coefficient | ≥3.5 MPa with m ≥7 | — | Supplied Chinese product manual; verify geometry and test method before specification |
| Packaging | — | Published valueA 15 kg + B 5 kg | Supplied Chinese product manual |
| Shelf life | — | Published value12 months | Supplied Chinese product manual |
Project approval input
Send the data that can change the product decision.
A technical recommendation is only as reliable as the project information supplied with the enquiry.
- 01Structure & connection
Foundation, annulus, segment joint, duct or blade bond-line drawing.
- 02Geometry & volume
Gap, section, lift height, net material volume and contingency.
- 03Acceptance criteria
Strength ages, flow, modulus, bond, fatigue, durability and test methods.
- 04Environment
Material, water, substrate and ambient temperature plus exposure conditions.
- 05Installation equipment
Mixer output, pump, hose diameter, distance, access and standby capacity.
- 06Construction window
Batch cycle, working time, continuous-placement plan, curing and release point.
English technical data sheet
JGN812 Wind Turbine Blade Adhesive - English TDS
Prepared from the supplied Sino-sina Building Materials Co., Ltd. product manual. Requirements are kept separate from published or reported values. Use the current controlled document and project specification for final approval.
Product packaging
Verified product images.
No Chinese product-manual page is displayed on this website. Technical acceptance remains subject to the current approved English TDS and privacy-protected evidence.

Technical enquiry
Check whether JGN812 Blade Adhesive matches your project.
Include the wind structure and connection drawing, geometry or bond line, volume, specified performance, temperature, standards, installation window and equipment.
