Shot blasting
Shot blasting: Professional surface preparation for concrete & screed
The success and longevity of a new floor covering or coating depends largely on one factor: perfect substrate preparation. One of the most effective and economical methods for preparing concrete and screed surfaces is shot blasting. This mechanical process not only cleans the surface deeply, but also creates the ideal profile for optimum adhesion of subsequent layers. As your nationwide specialists for screed and floor systems we use the latest shot blasting technology to create the perfect basis for high-quality and durable floors.
What is shot peening and how does the technology work?
Shot blasting is a mechanical blasting process for the treatment of mineral surfaces.
- The principle: In a mobile shot blasting machine, a rotating blasting wheel throws small steel balls (the blasting medium) at high speed onto the concrete or screed surface to be treated.
- The effect: The impact of the balls removes the top layer of the substrate (e.g. cement slurry, impurities, thin old coatings) and roughens the surface evenly.
- Dust-free working: The special feature of modern shot blasting technology is the closed system. A powerful extraction system immediately sucks up the abrasive together with the removed material. The abrasive is cleaned and fed back into the process, while dust and dirt are collected in a filter container. This enables extremely low-dust to virtually dust-free shot blasting.
Why shot peening? The convincing advantages of the process
Professional surface preparation using shot blasting offers decisive advantages:
- Optimum adhesion: It creates a clean, rough and non-slip surface with an ideal profile ("mechanical adhesion") for the subsequent coating, filler or screed. Keyword: Improve adhesion.
- Effective cleaning: Reliably removes cement slurry (sintered layers), efflorescence, light oil soiling, rubber abrasion, thin layers of paint or old coatings.
- High area performance: Enables fast and economical processing of even very large areas (e.g. industrial halls, parking garages).
- Low-dust process: Minimizes the impact on people and the environment and significantly reduces the cleaning effort.
- Dry processing: The substrate remains dry and can be processed immediately after cleaning (no waiting times as with wet processes).
- Uniform result: Creates a homogeneous surface profile over the entire surface.
Typical areas of application for shot peening
We use shot blasting nationwide for a wide range of tasks:
- Substrate preparation before floor coatings: The standard before applying EP, PU or PMMA coatings in industry, trade, parking garages, garages etc.
- Preparation for thin screeds or leveling compounds.
- Removal of cement slurry: On fresh concrete or screed to expose the load-bearing grain. Keywords: concrete shot blasting, screed shot blasting.
- Removal of thin old coatings, paint markings or coating residues.
- Roughening of smooth surfaces to increase grip (before coating).
- As part of the floor renovation for cleaning and preparation.
The process in detail: Professional shot peening
- Substrate testing: Assessment of strength, condition and type of contamination.
- Machine selection: Selection of the appropriate machine size and blasting intensity.
- Blasting work: Systematic traversing of the surface in paths with a defined speed and overlap. Edges are often processed with smaller sanding devices.
- Check: Check the blasting result (purity, roughness depth).
- Final cleaning: Careful vacuuming of the blasted surface with a powerful industrial vacuum cleaner.
Quality factors: What is important for shot peening
The following are crucial for an optimum result:
- The correct setting of jet intensity and travel speed.
- The choice of the appropriate blasting medium (ball size).
- A perfectly functioning, powerful extraction system.
- The machine operator's experience for a consistent result.
Costs of shot peening: A classification
The costs for shot blasting are higher than for simple cleaning, but it is often more economical and technically superior to other mechanical processes such as large-scale grinding or milling when it comes to pure surface preparation. It is a necessary investment in the quality and longevity of the subsequent floor structure. The price per square meter depends on the area, the condition of the substrate and the required intensity. We will be happy to provide you with a quote on a project-specific basis.
Your nationwide partner for professional shot peening technology
Our services in the area of substrate preparation:
- Modern shot blasting machines of various sizes with highly efficient dust extraction.
- Experienced and trained employees for precise and efficient execution.
- Nationwide use as part of our comprehensive flooring expertise (screed, coating, etc.).
- Focus on creating the perfect basis for durable flooring systems.
Shot blasting - The efficient basis for perfect floors
Shot blasting is the leading technology for fast, economical and low-dust surface preparation of concrete and screed surfaces. It creates the optimum conditions for the permanent adhesion of coatings and coverings and is therefore a decisive factor for the quality and durability of your floor.
Optimal substrate preparation? We blast for you!
Do you need a professionally prepared concrete or screed surface for your project? Contact us for advice and a quote for shot blasting. We are there for you nationwide - by phone, email or WhatsApp.
Frequently asked questions (FAQ)
Modern professional shot blasting machines work with a very powerful, integrated extraction system. This makes the process extremely low-dust or virtually dust-free. A 100% dust-free process can never be guaranteed in practice, but the impact is minimal compared to other processes such as dry sanding without extraction.
Yes, the impact of the steel balls and the machine itself generate a high noise level. Wearing hearing protection is essential for the operating personnel and people in the vicinity.
The substrate must be sufficiently firm and load-bearing. Very soft, loose or badly damaged substrates are not suitable. It works best on mineral surfaces. Wood or flexible coverings cannot be blasted.
As a rule, only very superficially, usually in the range of 0.5 to 2 millimeters. The aim is to remove the top layer (cement slurry, thin impurities) and create a rough profile, not to significantly remove material as with milling.
Especially before applying floor coatings (EP, PU, PMMA) to concrete or screed, shot blasting is often the most efficient and technically best method to create a clean, stable and optimally grippy primer on larger surfaces.