Deep primer remover - Frequently asked questions

Here you will find all the important information about HATOCH® deep primer removers. Our experts answer the most frequently asked questions about application, safety and product selection.

Basics

What is primer and why does it need to be removed?

Deep primer (also called bonding primer or bonding primer) is a liquid primer applied to walls, floors, and other surfaces before painting or plastering. It improves adhesion and reduces the absorbency of the substrate. During renovations, deep primer often accidentally gets onto windows, doors, window sills, or floors. There, it hardens and forms a stubborn, sticky layer that cannot be removed with normal cleaning agents.

What is a deep primer remover and how does it work?

A primer remover is a specialized cleaning agent that breaks down the chemical bonds of hardened primer. HATOCH® Primer Remover penetrates the primer layer, softens it, and thus allows for mechanical removal with a blade, spatula, or sponge. Unlike aggressive solvents, our formula works gently and leaves no residue.

For which types of primers is HATOCH® Primer Remover suitable?

HATOCH® primer remover is suitable for most common types of primer:

• Acrylic deep primer: Water-based primers (most common)
• Mineral deep primers: Silicate and cement-based primers
• Synthetic resin deep primer: Solvent-based primers
• Universal deep primer: Combination products

For particularly stubborn or unknown types of deep primer, we recommend our HATOCH® Deep Primer Remover SPECIAL .

Application

How do I use primer remover correctly?

Step-by-step instructions:

1. Preparation: Remove loose dirt from the surface and ventilate the work area well.
2. Application: Apply the deep primer remover generously to the soiled area (spray or apply directly).
3. Leave to work: Wait 5-15 minutes, up to 30 minutes for stubborn stains.
4. Mechanical processing: Carefully scrape off the softened primer using a glass scraper, blade, or spatula.
5. Wipe clean: Remove residue with a damp cloth or sponge.
6. Rinse: Wipe with clean water and allow to dry.

Important: Repeat the process for very stubborn stains.

On which surfaces can I use primer remover?

HATOCH® Deep Primer Remover is suitable for the following surfaces:

• Glass: windows, glass doors, mirrors, glass surfaces
• Plastic: Window frames, PVC profiles, plastic window sills
• Tiles: ceramic, porcelain stoneware, glazed tiles
• Painted surfaces: doors, radiators, painted wood
• Metal: Aluminum window frames, stainless steel
• Natural stone: Polished granite, marble (use with caution, test beforehand)

Not suitable for: Untreated wood surfaces, porous materials, sensitive plastics. If unsure, always test in an inconspicuous area.

Product selection

Which size should I choose?

50ml: Ideal for small areas, DIY enthusiasts and for testing.
500ml (SPECIAL): For almost all types of deep primer, medium-sized projects
750ml: Professional size for large areas and commercial use
50ml Set: Includes blade holder & blade for immediate use

What is the difference between the standard and the SPECIAL deep primer remover?

HATOCH® Deep Primer Remover SPECIAL is optimized for particularly stubborn and various types of deep primer. It has a reinforced formula for difficult cases, while the standard versions are designed for common deep primer stains on glass and plastic.

Safety & Environment

Is HATOCH® Deep Primer Remover solvent-free?

Yes, all HATOCH® primer removers are 100% solvent-free . We do not use aggressive chemicals such as acetone, toluene, or other organic solvents. Our formulation is based on environmentally friendly active ingredients that work effectively while being gentle on both people and the environment.

Is the deep primer remover safe for health?

When used as directed, HATOCH® Deep Primer Remover is safe. However, we recommend: ensure good ventilation during application, avoid skin contact (wear gloves), do not ingest, and keep out of reach of children. Safety data sheets are available upon request.

How long does the deep primer remover last?

When stored properly (cool, dry, sealed), HATOCH® Deep Primer Remover has a shelf life of at least 24 months . The exact best-before date can be found on the packaging.

Problem solving

What do I do if the primer doesn't come off?

Possible solutions:

1. Longer application time: Leave on for up to 30 minutes.
2. Multiple applications: Repeat the process 2-3 times.
3. SPECIAL variant: Switch to HATOCH® Deep Primer Remover SPECIAL
4. Mechanical support: Use a sharp blade, apply more pressure.

Can I use deep primer remover for other types of soiling?

HATOCH® Primer Remover is specifically optimized for use on primers/bonding agents. For other types of soiling, we recommend our specialized products such as HATOCH® Varnish Remover.