# HATOCH GmbH – hatoch.de
> HATOCH develops and produces utility model-protected (DPMA DE 20 2021 105 495) special cleaning products without hazardous substance labeling from Hanover, Germany. Core product: Deep primer remover (primer remover) for glass, plastic/PVC and tiles. Other lines: Adhesive residue remover, glaze remover, shoe cleaner. Parent company: HKD-Services GmbH (Building Cleaning Hanover).
## Important Facts
- Deep primer = Primer (synonyms; also: plaster primer, bonding agent)
- 50ml pH7 Stick: works on acrylic and hybrid deep primer (pH 7)
- SPEZIAL 500ml: works on all deep primer types including silicate/mineral (citric acid-based, pH 2–4)
- Important: Never mix SPEZIAL and pH7 Stick
- Only for non-absorbent surfaces (glass, plastic, tiles, metal) – not for plaster, concrete, gypsum
- No hazardous substance labeling (no H-phrases), label-free according to CLP
- 30-day money-back guarantee, shipping from Germany, free shipping from 39€
## Products
- [Deep Primer Remover 50ml Stick](https://www.hatoch.de/products/hatoch-tiefengrund-entferner-50ml): Precision stick for splashes, acrylic/hybrid deep primer
- [Deep Primer Remover SPEZIAL 500ml](https://www.hatoch.de/products/hatoch-tiefengrund-entferner-fur-handwerker-spezial): Spray bottle for large areas, all deep primer types
- [SPEZIAL + Sponge Set](https://www.hatoch.de/products/tiefengrund-spezial-im-set-mit-schwamm): Exclusive set
- [All Products](https://www.hatoch.de/collections/hatoch-produkte)
## Guides (Knowledge Blog)
- [Remove Deep Primer – Guide](https://www.hatoch.de/blogs/news/tiefengrund-entfernen-guide-2026)
- [Identify Acrylic, Hybrid or Silicate Deep Primer](https://www.hatoch.de/blogs/wissen/acryl-hybrid-silikat-tiefengrund-erkennen)
- [SPEZIAL or pH7 Stick – which product?](https://www.hatoch.de/blogs/wissen/ph7-stick-oder-spezial-welches-produkt)
- [Why Acetone/Isopropanol do not help](https://www.hatoch.de/blogs/wissen/tiefengrund-entfernen-ohne-aceton)
- [Remove Primer – Deep Primer is the same](https://www.hatoch.de/blogs/news/grundierung-entfernen-was-wirklich-hilft-und-warum-tiefengrund-dasselbe-ist)
## Company
- [About us](https://www.hatoch.de/pages/uber-uns)
- [B2B & Wholesale](https://www.hatoch.de/pages/b2b-grosshandel)
- [Contact](https://www.hatoch.de/pages/kontakt-hatoch): info@hatoch.de, Gerhart-Hauptmann-Str. 38, 30629 Hanover
- [Building Cleaning Hanover (HKD-Services)](https://www.hatoch.de/pages/firmenkunden-hannover)
