Overview
Mixed-material insulation systems — a microporous panel behind a calcium silicate board, a perlite board inside a steel casing, a ceramic fibre hot face over a backup layer — need a high temperature adhesive for insulation boards that is compatible with all of them. Wedge HTAL1000 was developed for economical processing of insulation materials and lightweight construction systems, and its data sheet names low- and high-density calcium silicate, microporous insulation, perlite boards, ceramic fibre and insulation on steel as applications.
It is inorganic, asbestos-free and incombustible, adheres to almost all foundations, and does not damage steel. Choose the paste for trowel work and vertical faces or the fluid for roller lamination; switch to HTAL1600 where a board’s hot face runs above 1,000 °C.

Specifications
| Property | HTAL1000 WK 84 (paste) | HTAL1000 WK 84/16 (fluid) |
|---|---|---|
| Product type | High-temperature glue | High-temperature glue |
| Classification temperature | 1,000 °C | 1,000 °C |
| Chemistry | Inorganic, asbestos-free, incombustible | Inorganic, asbestos-free, incombustible |
| Colour | Grey | Grey |
| Consistency | Pasty — trowel / spatula | Fluid — roller / brush |
| Processing temperature | 5–40 °C | 5–40 °C |
| Setting after application | 8 h | 1 h |
| Hardening | 24 h | 8 h |
| Full hardening | 1 week | 1 week |
| Mixing | None — ready to use | None — ready to use |
| Storage | Frost-free, 6 months | Frost-free, 6 months |
| Packing | 7.5 kg and 15 kg buckets | 15–20 kg buckets |
Board-by-board compatibility
| Insulation board | Wedge adhesive | Note |
|---|---|---|
| Calcium silicate (low and high density) | HTAL1000 paste or fluid | Listed on data sheet — calcium silicate boards |
| Microporous boards and panels | HTAL1000 paste or fluid | Listed on data sheet — microporous insulation |
| Perlite boards | HTAL1000 paste | Listed on data sheet |
| Ceramic fibre board ≤1,000 °C | HTAL1000 | Listed on data sheet |
| Ceramic / refractory fibre board, hot face >1,000 °C | HTAL1600 | 1,600–1,700 °C |
| Board to steel casing | HTAL1000 paste | High pH, steel-safe |
High temperature adhesive for insulation boards price
Wedge Industries Limited sells high temperature adhesive for insulation boards at ₹485 per kg (≈ $5.50 per kg at ₹88/$, indicative) with a minimum order quantity of 200 kg — a 200 kg order is ₹97,000 (≈ $1,100). Orders below 200 kg are quoted on request. Send your board list and areas and Wedge will recommend grades and bucket quantities per layer. Project and export orders are priced in ₹ INR and $ USD with delivery to site in India or CIF/DAP to your port.
Applications
- Multi-layer furnace, kiln and ladle linings combining microporous, calcium silicate and ceramic fibre boards.
- EV battery and BESS enclosures, data-centre and fire-rated cabinet linings using microporous or calcium silicate boards.
- Ovens, stoves, fireplaces, boilers and dryers built with perlite or vermiculite boards.
- Glass, aluminium and steel plant equipment backup insulation.
- Fire-protection board assemblies where glue lines must be incombustible.
How to apply
- Process at 5–40 °C; boards dry and dust-free, steel free of oil and loose scale.
- Paste: notched trowel, one face. Fluid: roller, even film.
- Join and press; support parts until set (8 h paste, 1 h fluid).
- Harden 24 h (paste) / 8 h (fluid); full hardness after one week before heat-up.
- Store unopened buckets frost-free for up to 6 months.
Why buy high temperature adhesive from Wedge Industries Limited
- One supplier for the insulation and the glue — calcium silicate, microporous, ceramic fibre, perlite and aerogel products plus the adhesive that is specified to bond them.
- Every value on this page comes from the Wedge HTAL1000 / HTAL1600 technical data sheet, which you can download above; nothing is guessed.
- Inorganic and asbestos-free HTAL1000 does not burn or smoke, and its high pH does not attack steel substrates.
- Technical support from Wedge engineers on grade selection, surface preparation and cure before the job starts.
- Delivery across India from Delhi NCR and export to 45+ countries in the Gulf, Europe, Africa and South East Asia, with export documentation through group company ZJELL Limited.
Frequently asked questions
Which high temperature adhesive works for insulation boards?
Wedge HTAL1000 is an inorganic, asbestos-free adhesive rated to 1,000 degrees Celsius whose data sheet lists low- and high-density calcium silicate, microporous insulation, perlite boards, ceramic fibre and insulation on steel. For hot faces above 1,000 degrees Celsius use HTAL1600.
Can one adhesive bond different insulation boards together?
Yes. HTAL1000 adheres to almost all foundations, so microporous, calcium silicate, perlite and ceramic fibre boards can be bonded to each other and to steel with the same glue, provided the joint stays within 1,000 degrees Celsius.
Is the adhesive suitable for microporous insulation?
Yes. Microporous insulation bonding is listed on the HTAL1000 data sheet. Apply a thin layer so the glue line does not add unnecessary thermal bridging.
What are the setting and hardening times?
Paste WK 84 sets in 8 hours and hardens in 24 hours; fluid WK 84/16 sets in 1 hour and hardens in 8 hours. Both reach full hardness after one week.
Does it contain asbestos or organic binders?
No. HTAL1000 is inorganic and asbestos-free, incombustible and smoke-free on heat-up.
What is the price of high temperature adhesive for insulation boards?
Wedge Industries Limited sells high temperature adhesive for insulation boards at INR 485 per kg (about USD 5.50 per kg) with a minimum order quantity of 200 kg, so a 200 kg order is INR 97,000. Orders below 200 kg are quoted on request. Send the quantity and delivery city or port on WhatsApp +91 97175 06848 or through Get Price.
Related products
- High Temperature Adhesive 1000°C
- Heat Resistant Adhesive
- High Temperature Resistant Adhesive 1600°C
- Refractory Adhesive 1600°C
- Calcium Silicate Board Adhesive
- Ceramic Board Adhesive
- Ceramic Blanket Adhesive
- Calcium silicate boards
- Microporous insulation
- Ceramic fiber blanket
- High-temperature insulation boards
- High-temperature insulation
- All high temperature adhesives
Request a quotation for high temperature adhesive for insulation boards
Tell us the boards or blanket you are bonding, the service temperature, the area or number of joints and the delivery city or port. Wedge Industries Limited replies with the right grade, the data sheet and a price in ₹ INR and $ USD.





