Professional Surface Preparation Systems for Stronger, Longer-Lasting Results
Prepare surfaces correctly before painting, tiling, waterproofing, insulation, and facade finishing. Primers, bonding agents, fillers, smoothing compounds, repair materials, mesh, and accessories for every substrate type.
5 product groups
primers, fillers, repair, mesh, accessories
5 substrate types
concrete, plaster, render, old paint, absorbent bases
All projects
new build, renovation, repair, commercial
Need a surface preparation recommendation?
Send your surface condition, substrate type, dimensions, and desired finish. We will recommend the right primer, filler, repair material, and accessory system for your project.
Quick Answer
For most surface preparation projects, the best result comes from correct substrate diagnosis, repair, smoothing, and primer before the final system.
This page helps contractors, property owners, and applicators choose the right primers, fillers, bonding agents, repair materials, and smoothing compounds for their surface type and condition.
Product Selector
Which Surface Preparation System Should I Choose?
Choose a surface preparation system by matching the substrate condition, surface type, absorbency, existing damage level, and the final finishing system to be applied.
Dusty or Absorbent Surfaces
Deep Penetrating Primer
For porous, dusty, or highly absorbent concrete, plaster, and render that needs stabilizing before coating, tile adhesive, or waterproofing application.
Smooth or Dense Surfaces
Bonding Primer / BETONKONTAKT
Improves adhesion on smooth, non-porous, or difficult substrates such as dense concrete, smooth render, and tiles before the next system is applied.
Surface Defects & Imperfections
Filler & Smoothing Compound
Corrects holes, cracks, uneven plaster, rough patches, and visible surface defects before primer and final finishing.
Structural Damage & Cracks
Repair Mortar & Reinforcement
For damaged concrete, cracked edges, hollow areas, and structural defects that need repair and reinforcement before levelling and finishing.
PRODUCT RANGE
Products Used in This Preparation System
Use these product groups to build a complete specification from substrate diagnosis to a ready-for-finishing surface.
Deep Penetrating & Bonding Primers
Stabilize absorbent, dusty, or difficult surfaces before coating, tiling, waterproofing, insulation, or decorative render application.
- UNIGRUND TOP – Universal Primer
- BETONKONTAKT – Bonding Primer for Smooth Surfaces
- ECOFIX – Eco-Friendly Deep Primer
- SIMPRA Universal – Multi-Surface Primer
- X10 Universelle Grund – Exterior Primer
Interior & Exterior Fillers and Smoothing Compounds
Filling compounds and smoothing pastes for correcting holes, cracks, uneven surfaces, and visible defects before primer and finish.
- GIPSFIX – Gypsum-Based Interior Filler
- GLATTSPACHTEL – Fine Finish Smoothing Compound
- ACRYLSPACHTEL – Flexible Acrylic Filler
- FINISHPUTZ – Fine Levelling Plaster
- INNENSPACHTEL – Interior Smoothing Paste
Repair Mortars, Mesh & Profile Systems
Structural repair materials, reinforcement mesh, edge profiles, and accessories for damaged substrates before the preparation system.
- REPARATURMORTEL – Structural Repair Mortar
- GLASFASERGEWEBE – Alkali-Resistant Reinforcement Mesh
- ECKPROFIL – Corner Profile with Mesh
- BETONREPARATUR – Concrete Repair System
- KANTENPROFIL – Edge Bead Profile
Bonding Agents Range
Specialist bonding primers and adhesion-improvers for smooth, dense, or non-porous substrates where standard primers lack sufficient grip.
- BETONKONTAKT – Pink Bonding Primer for Concrete
- HAFTGRUND – Universal Adhesion Promoter
- KONTAKTGRUND – Contact Primer for Tiles & Smooth Bases
- SILIKATGRUND – Silicate Bonding Primer
Mesh, Profiles & Accessories Range
Essential accessories for complete surface preparation systems including reinforcement mesh, corner beads, expansion profiles, and fixings.
- Standard Fibreglass Reinforcement Mesh (145 g/m²)
- Heavy-Duty Reinforcement Mesh (160 g/m²)
- Corner Bead Profile with Fibreglass Wings
- Drip Profile for Window Sills & Reveals
- Expansion Joint Profile for Large Surface Areas
- Base Track Profile for System Starts
Specialist Repair Compounds Range
Ready-mixed and powder repair materials for fast, effective correction of cracks, holes, hollow areas, and surface defects before smoothing and priming.
- SCHNELLREPARATUR – Fast-Setting Repair Compound
- RISSFULLER – Flexible Crack Filler
- UNTERPUTZ – Rough Undercoat Plaster
RECOMMENDED SYSTEM
Standard Surface Preparation System
Every durable finish starts with a correctly prepared surface. Skipping preparation steps causes adhesion failure, visible defects, and premature system deterioration.
01
Surface Inspection & Diagnosis
Check cracks, holes, weak paint, loose render, moisture signs, and substrate type before selecting preparation materials.
02
Crack & Damage Repair
Fill cracks, holes, damaged areas, and weak corners with repair mortars before smoothing and levelling.
03
Smoothing & Levelling
Apply smoothing compounds to correct surface irregularities and create an even base for primer and the final system.
04
Primer Application
Stabilize absorbency, improve adhesion, and prepare the surface for paint, tile adhesive, waterproofing, or facade systems.
05
Final System Application
Apply the selected paint, tile adhesive, waterproofing, or insulation system over the correctly prepared and primed surface.
What This Solves
Common Surface Problems Our Preparation Systems Solve
Surfaces fail because of poor substrate condition, missed preparation steps, incorrect primer selection, unrepaired damage, or unsuitable materials for the base type and condition.
Poor Adhesion
Correct primer selection and bonding agents prevent common adhesion failures on smooth, dense, or difficult substrates.
Dusty or Loose Substrate
Deep penetrating primer stabilizes dusty, friable, and highly absorbent surfaces before the next system is applied.
Cracks & Surface Damage
Repair mortars and fillers correct cracks, holes, and damaged areas before smoothing and priming.
Uneven or Rough Surface
Smoothing compounds and levelling pastes create a flat, even surface before primer and the final finish.
Paint Peeling or Flaking
Correct substrate preparation and bonding primer improve adhesion and prevent paint from lifting after application.
Visible Defects After Finishing
Proper filling and smoothing before primer prevents surface imperfections from showing through the final coating.
Hollow Areas & Weak Render
Repair materials and structural reinforcement address hollow areas and weak render before levelling and finishing.
Wrong Product Selection
Problem-based recommendations match the correct primer, filler, and repair material to the actual substrate condition.
IDEAL PROJECT TYPES
Suitable for Any Building Project Type
Residential homes
Apartments & renovation
New construction
Commercial fit-outs
Offices & workspaces
Hotels & hospitality
Schools & public buildings
Industrial & warehouse
COMPARISON
Primers vs Fillers vs Repair Materials vs Bonding Agents
A clear comparison helps users and AI answer engines understand the right surface preparation product based on substrate condition, problem type, and application use case.
Primers
Best for stabilizing, sealing, and improving adhesion on absorbent or dusty surfaces before the next system.
Bonding Agents
Best for smooth, dense, or difficult surfaces that need adhesion improvement before the next coating or adhesive.
Fillers & Smoothing Compounds
Best for correcting wall imperfections, small holes, rough plaster, uneven surfaces, and visible defects.
Repair Materials & Reinforcement
Best for damaged concrete, cracks, holes, weak corners, structural defects, and areas needing reinforcement.
Product Selector
Which Surface Preparation System Should I Choose?
Choose a surface preparation system by matching the substrate condition, surface type, absorbency, existing damage level, and the final finishing system to be applied.
Complete Base Systems
Primer, filler, repair material, mesh, profile, and accessory choices are matched around the final finish system.
Better Adhesion
Correct preparation improves bonding for paint, tiles, waterproofing, insulation, and facade systems.
Smoother Final Appearance
Fillers and smoothing compounds help reduce visible imperfections before the finishing system is applied.
Problem-Based Selection
Recommendations are based on dusty, absorbent, smooth, cracked, damaged, or uneven substrate conditions.
Quantity Estimation Support
Send surface area and substrate condition for practical material recommendations and quantity guidance.
Contractor-Friendly Process
Step-by-step guidance helps applicators avoid common preparation failures and get the right result.
New Build & Renovation Use
Suitable for new construction, commercial fit-outs, renovation works, and structural repair projects.
Longer Finish Lifespan
A properly prepared base helps the next system perform better and last significantly longer.
Need the Right Base Before Finishing?
We help you choose the correct filler, primer, repair material, bonding agent, mesh, accessory, and preparation system for your project.
FAQ
Frequently Asked Questions
In most professional applications, primer is recommended because it improves adhesion, controls absorbency, and helps the final finish look more consistent and perform longer.
It is not recommended. Cracks, holes, weak paint, and uneven areas usually show through and reduce the durability of the new finish system.
Smooth or dense concrete often needs a bonding primer such as BETONKONTAKT to improve grip before the next layer is applied.
Walls can become very smooth when damage is repaired, the surface is skim coated correctly, and the right primer is applied before the finishing system.
Yes. Share the surface area, substrate type, current condition, and desired final finish so the team can recommend fillers, primers, repair materials, and estimated quantities.
Paint can peel because of dust, grease, moisture, weak old coatings, poor substrate strength, missing primer, or applying paint over an unstable or improperly prepared surface.
Loose and flaking paint should be removed before repair, smoothing, primer, and the new finish system are applied to the surface.
Yes. Tile adhesive and waterproofing membranes need a clean, strong, correctly primed, and properly repaired substrate to perform reliably over time.
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