# K-801 Primer

> Black primer that builds the adhesion film under PU and STP sealants.

Model: K-801 · Family: Activators and primers · Source: https://karmindadhesive.com/products/k-801-primer/

## What it is

Primer applied to the substrate before sealant or adhesive; forms a cured film that improves adhesion, with good coverage and UV resistance.

## Specification (typical values)

| Test | Standard | Typical value | Method |
|---|---|---|---|
| Appearance | — | Black liquid | — |
| Density (g/cm³) | 0.85–1.0 | 0.9 | — |
| Skin time (min) | ≤10 | 8 | — |
| Activation time (min) | 30–45 | 30 | — |
| Active content (%) | 6–15 | 6 | — |
| Application temperature (°C) | — | +5 to +35 | — |
| Shelf life | — | 6 months unopened | — |

## Packaging

| Format | Size | Carton / unit |
|---|---|---|
| can | 5 / 10 / 50 / 250 ml, 1 L | — |

## Where it is used

- Substrate preparation before applying sealants and adhesives

## Ordering

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