# KA540 Automotive Sheet Metal Adhesive

> High-modulus seam sealer for body panels, sandable and paintable.

Model: KA540 · Family: Body and sheet metal · Source: https://karmindadhesive.com/products/ka540-sheet-metal-adhesive/

## What it is

One-component moisture-curing high-modulus polyurethane for sheet metal seams; thixotropic, sandable and paintable, solvent-free, low VOC, non-yellowing.

## Specification (typical values)

| Test | Standard | Typical value | Method |
|---|---|---|---|
| Appearance | — | Black / White / Gray / Beige | — |
| Density (g/cm³) | 1.5±0.1 | 1.50 | GB/T 13477.2 |
| Sag resistance (mm) | ≤0.5 | 0 | GB/T 13477.6 |
| Skin time (min) | 30–60 | 35 | GB/T 13477.5 |
| Cure rate (mm/day) | ≥3 | 3.5 | HG/T 4363 |
| Volatile content (%) | ≤2 | 1 | GB/T 2793 |
| Shore A hardness | 40–50 | 45 | GB/T 531.1 |
| Tensile strength (MPa) | ≥2 | 2.5 | GB/T 528 |
| Elongation at break (%) | ≥500 | 600 | GB/T 528 |
| Tensile shear strength (MPa) | ≥1.5 | 2 | GB/T 7124 |
| Extrusion rate (ml/min) | ≥250 | 320 | GB/T 13477.4 |

## Packaging

| Format | Size | Carton / unit |
|---|---|---|
| cartridge | 310 ml | 12 / 20 / 24 pcs |
| sausage | 400 / 600 ml | 20 pcs |
| barrel | 200 L / 250 kg | — |

## Where it is used

- Sealing body skins and aluminium trim panels
- Bonding and sealing interior body components
- Edge sealing for doors, tailgates and bonnets
- Seam sealing on welded body joints
- Body sealing on converted and specialty vehicles
- Waterproofing container seams

## Ordering

Prices are quoted per order. Email martin@karmindadhesive.com with model, quantity, pack format, destination and substrate.