Hebei Karmind · PU sealant manufacturer
Polyurethane sealants built to a specification, not a brochure
10 production lines and 10,000 tonnes a year in Wei County, Hebei. Windscreen adhesives, body seam sealers, construction joint sealants, STP and PUR wood adhesive — supplied in 310 ml cartridges, 400/600 ml sausages and 200 L barrels, under your brand or ours.
Product range
Six families, ten models, one specification sheet each
Every model page carries the full test table from our catalogue — standard, typical value and the GB/T method used — so you can compare against the sealant you run today before asking for a sample.
KA518 · KA520 · KA530F
Automotive glass bonding
Windscreen, side and rear glass adhesives — 310 ml cartridges, sausages and 200 L barrels.
KA540
Body and sheet metal
Seam sealers for body panels, doors and container joints — sandable, paintable, four colours.
KA340A · KA340B
Construction joints
Concrete, tunnel and drainage sealants — 550–615% elongation, elastic recovery up to 80%.
KAM921
Industrial and STP
Silyl-terminated polymer sealant for metal, plastic and glass — primerless and paintable.
K-901 · K-801
Activators and primers
Surface preparation that decides whether the bead holds: K-901 activator, K-801 primer.
At a glance
What each model actually delivers
| Model | Use | Key figures | Pack |
|---|---|---|---|
| KA518 | Polyurethane Windshield Adhesive | 3.5 MPa tensile · 320% elongation | 310 ml |
| KA520 | High-Strength Windscreen Adhesive | 4.5 MPa tensile · 450% elongation | 310 ml |
| KA530F | Fast-Drying Glass Adhesive | 6.5 MPa tensile · 450% elongation | 310 ml |
| KA540 | Automotive Sheet Metal Adhesive | 2.5 MPa tensile · 600% elongation | 310 ml |
| KA340A | Construction Sealant | 2.5 MPa tensile · 615% elongation | 310 ml |
| KA340B | Construction Sealant | 2.0 MPa tensile · 550% elongation | 310 ml |
| KAM921 | STP Sealant | 1.8 MPa tensile · 450% elongation | 310 ml (plastic) |
| KA505 | PUR Wood Adhesive | 500 ml | |
| K-901 | Activator | 5 / 10 / 50 / 250 ml, 1 L | |
| K-801 | Primer | 5 / 10 / 50 / 250 ml, 1 L |
Typical values from the printed catalogue. Batch certificates carry the measured result for the lot you receive.
Why buyers switch
Primerless where it matters, documented where it counts
Our second- and third-generation sealants bond glass, metal and painted panels without a primer coat — one less step in the bay and one less failure point on the car. The trade-off is that surface preparation still decides the result: an activator or primer is the difference between a bead that holds for the life of the vehicle and one that lifts at the first frost.
The figures on this site are typical values. The measured result belongs to the lot, so ask for it in writing — tensile strength, elongation and skin time for the batch you will receive — before you approve a shipment.
OEM & ODM
Your label, our line
- Private-label cartridges, sausages and pails printed to your artwork
- Formulation adjustment for cure speed, hardness or colour
- Colour matching to RAL, Pantone or a physical sample
- Mixed pallets across models for distributors
Talk to someone who knows the material
Tell us the substrate, the joint movement and the pack size you need. We will tell you which model fits — and say so when none of them does.