Building and renovating naturally with clay
Our carefully selected clay building materials for new builds, refurbishments and interior fit-outs combine traditional knowledge of building materials with modern requirements for a comfortable indoor climate. Drawing on over 30 years of practical experience, we know what matters when it comes to material selection, construction and workmanship, and we focus on systems that meet our professional standards.
Clayboard
clay plasters
clay bricks
Various types of clay
Claytec, building clay bagged 25 kg
Building clay is intended as a basic material for craftsmen experienced in clay construction. Mixing ratios depend on the intended use and the aggregates. Recipes must be developed individually.Data sheetField of applicationBinder for clay mortar, clay fills, straw clay, light clay, etc. Base material for customised mixtures and for the production of spiral stakes.CompositionNatural building clay with fine sandy mineral structureBinding forceBinding strength tested according to 2.4.3 of the "Loam Construction Rules" of the Dachverband LehmForms of deliveryMoist in 1.0 tonne big bags with grain sizes up to 5 mmDry, ground in 1.0 tonne big bags with grain sizes up to 0.5 mmDry, ground in 25 kg bags, 48 bags/pal. with grain sizes up to 0.5 mm in 25 kg bags, 48 bags/pal.StorageProtect from drying out (clumping) or moisture penetration due to the weather. Apart from changes in consistency, storage is possible indefinitely.
Content: 25 Kilogram (€0.62 / 1 Kilogram)
€15.49*
Claytec, clay joint filler, natural brown, 1.5 kg
Clay joint fillerFilling material for joints between clay and timber components such as door panelling and skirting boards as well as for dowel holes. Also suitable for cracks and defects in historic half-timbered beams. Clay joint filler is the ecological alternative to plastic fillers. The dry material is mixed with water, poured into the refillable CLAYTEC interchangeable cartridge and applied with the cartridge press. Remaining quantities can be stored indefinitely. The natural-brown colour is suitable for natural-coloured clay interior plaster surfaces.Data sheet Clay plastersArea of applicationFilling joints between half-timbered beams and clay infills. For joints between clay or lime plasters and finishing elements such as skirting boards, door panelling or other adjacent fixtures. For closing wood shrinkage cracks and settlement cracks caused by building components. As a filler compound for dowel holes etc.CompositionNatural building clay, cork, expanded glass, talcum, cellulose, vegetable thickenerDelivery form, yield1.5 kg bag yields approx. 2.5 litres of joint fillerColour natural-BROWNColour natural-LIGHTAvailable to match: CLAYTEC replaceable cartridge empty with nozzle and piston / 310 litresStorageCan be stored in a cool, dry place indefinitelyPreparationAdd water with a kitchen whisk or by hand. Natural brown 1.15 to 1.25 litres, natural light 0.975 to 1.15 litres depending on the desired processing consistency and width of the joints to be filled.ProcessingJoints and cracks must be carefully cleaned mechanically. Absorbent mineral joint flanks can be carefully moistened to bind dust. The mixed material can be poured into the CLAYTEC interchangeable cartridge (Art. No. 182/582) using a dough spatula, for example, and is ready for immediate use. When choosing a cartridge press, make sure it is a quality device. The piston in the interchangeable cartridge can be pushed back with a round rod for multiple use.Silicone spatulas are suitable for removing the joint filler, fine brushes and clean water for smoothing. In the case of wide or deep joints, fine tears may occur on one edge of the joint or the filler may collapse slightly.In addition to joint filling, small areas can also be filled with a spatula.Further treatmentFinishing with or without material using a sponge and clean water. Filling and painting is possible with all products suitable for clay plaster surfaces, especially CLAYFIX clay paint.
Content: 1.5 Kilogram (€8.57 / 1 Kilogram)
€12.86*
Claytec, clay joint filler, natural-light, 1.5 kg
Filling material for joints between clay and timber components such as door panelling and skirting boards as well as for dowel holes. Also suitable for cracks and defects in historic half-timbered beams. Clay joint filler is the ecological alternative to plastic fillers. The dry material is mixed with water, poured into the refillable CLAYTEC interchangeable cartridge and applied with the cartridge press. Remaining quantities can be stored indefinitely. The natural-brown colour is suitable for natural-coloured clay interior plaster surfaces.Data sheet Clay plasters Worksheet fine surfacesArea of applicationFilling joints between half-timbered beams and clay infills. For joints between clay or lime plasters and finishing elements such as skirting boards, door panelling or other adjacent fixtures. For closing wood shrinkage cracks and settlement cracks caused by building components. As a filler compound for dowel holes etc.CompositionNatural building clay, cork, expanded glass, talcum, cellulose, vegetable thickenerDelivery form, yield1.5 kg bag yields approx. 2.5 litres of joint fillerColour natural-BROWNColour natural-LIGHTAvailable to match: Interchangeable cartridge empty with nozzle and piston SW10108StorageCan be stored in a cool, dry place indefinitelyPreparationAdd water with a kitchen whisk or by hand. Natural brown 1.15 to 1.25 litres, natural light 0.975 to 1.15 litres depending on the desired application consistency and width of the joints to be filled.ProcessingJoints and cracks must be carefully cleaned mechanically. Absorbent mineral joint flanks can be carefully moistened to bind dust. The mixed material can be poured into the CLAYTEC interchangeable cartridge (Art. No. 182/582) using a dough spatula, for example, and is ready for immediate use. When choosing a cartridge press, make sure it is a quality device. The piston in the interchangeable cartridge can be pushed back with a round rod for multiple use.Silicone spatulas are suitable for removing the joint filler, fine brushes and clean water for smoothing. In the case of wide or deep joints, fine tears may occur on one edge of the joint or the filler may collapse slightly.In addition to joint filling, small areas can also be filled with a spatula.Further treatmentFinishing with or without material using a sponge and clean water. Filling and painting is possible with all products suitable for clay plaster surfaces, especially CLAYFIX clay paint.
Content: 1.5 Kilogram (€8.57 / 1 Kilogram)
€12.86*
Claytec, clay masonry mortar light, bag 25 kg
Masonry mortar for lightweight clay blocks for timber frame infill and inner shells.The wood shavings content ensures that the material composition of the light clay blocks is adapted, asare the bulk density and the physical properties of the building.If you have further requirements, please enquire about availability, price and delivery costs for goods in BigBags using the contact form on our website.We will be happy to provide you with a personalised offer.Data sheet Truss Field of applicationMasonry mortar for clay blocks and lightweight clay blocks of application class I or II.Cannot be used as a render mortar or as a base material for the production of render mortars. CompositionNatural building clay up to 5 mm, sand 0-2 mm, wood granulate (chips) up to 20 mm.Grain group, oversize according to DIN 0/4, < 8 mm.Delivery form, yieldSoil-moist in 1.0 t big bags (makes 700 litres of masonry mortar)Moist in 0.5 t big bags (yields 350 litres of masonry mortar)Dry in 25 kg bags (yields 20.5 litres of masonry mortar), 48 bags/pal.Material requirementDepending on brick format and wall thickness - see product sheetMortar preparationWith the addition of approx. 10% water (earth-moist) or approx. 30-35% (dry) with all commercially available free-fall mixers, disc and trough compulsory mixers. In smaller quantities also with a motorised whisk or by hand.ProcessingThe mortar is applied in accordance with the rules of the bricklaying trade. If lime plastering is planned, level the masonry joints and scrape out sharp edges up to a maximum recess of 3 mm to improve subsequent plaster adhesion.Processing timeAs there is no chemical setting process, the material can be applied covered for several days. It can remain in mortar pumps and hoses for just as long.ColourThe colour of the mortar may differ from the colour of the clay blocks and light clay blocks.
Content: 25 Kilogram (€0.71 / 1 Kilogram)
€17.66*
Empty cartridge complete for Claytec joint filler
Empty cartridge capacity: 310 mlScope of delivery: empty interchangeable cartridge, piston, nozzleSupplementary product for Claytec clay joint filler and many other applications.
€1.69*
Furnace clay, bagged goods 20 kg
The particularly high-quality HAGOS Top 90 stove construction clay with its typical brown-beige colour is an indispensable product for use in the construction of tiled and plaster stoves, pizza ovens and clay ovens. The clay mortar is ideal for bricklaying stove tiles and fireclay bricks as well as for shaping plaster surfaces and sealing sweep openings.Temperature resistance: 800 - 900 °C !!!Application:For use with quartz sand, washed sand or fireclay powder or grit and prepare with clean tap waterIdeal for all corresponding applications in the construction and repair of tiled and plaster stoves, pizza ovens and clay ovensProfessional material with premium qualityCan be stored practically indefinitely
Content: 20 Kilogram (€1.15 / 1 Kilogram)
€22.98*
Clay building materials – natural building with practical experience
Clay is one of the oldest building materials in existence and is once again in high demand today for those seeking to build or renovate in a natural, healthy and structurally sound manner. We have been working with natural building materials for many years and know from practical experience that, in clay construction, it is not just the individual product that matters, but above all the correct structure, the suitable substrate and meticulous workmanship.
That is why we have deliberately kept our range concise and focus on clay building materials that have proven themselves in practice. These include clayboards, clay plasters, clay bricks and various clays for different applications in new builds, renovation and eco-friendly interior fit-out.
Clayboard
Clayboards are particularly suitable for dry interior fit-out and combine easy installation with the typical properties of clay. They are used, amongst other things, on wall and ceiling surfaces, in timber construction or in renovation projects, and can help to regulate humidity in the room and support a balanced indoor climate.
In our experience, the most important aspect when using clayboards is that the substructure, fixing, joint treatment and subsequent plaster application are all compatible. This is precisely where mistakes often occur in practice when individual components are selected independently of one another.
clay plasters
Clay plasters are versatile and suitable for both new wall constructions and the renovation of existing surfaces. Depending on the product and application, they can be used as a base coat, finish coat or decorative finish.
We value clay plasters above all for their ease of application and their ability to absorb and release moisture from the indoor air. However, the right substrate is also crucial here. Absorbency, adhesion and layer thickness must be taken into account to ensure the plaster functions effectively in the long term and can be applied cleanly.
clay bricks
Clay bricks are primarily used where mass, moisture buffering and a natural building material are required. They are suitable, for example, for internal walls, infill walls, wall linings or specialised renovation structures.
In practice, their strengths are particularly evident in solid, vapour-permeable constructions. It is important that clay bricks are always considered as part of the overall wall structure. Mortar, render and adjacent materials should be compatible with one another in terms of building physics.
Different clays for different applications
Not every type of clay is equally suitable for every application. Depending on their composition and processing, clays differ significantly in terms of workability, grain size, plasticity and range of applications.
That is why we stock a range of clay products for different tasks – from classic clay mortar and rendering clays right through to specialised mixtures for renovation and interior finishing. Our selection is based not so much on offering as many variants as possible, but rather on which products can be used and worked with effectively.
Why we stock clay building materials
For us, clay is not just a trendy product, but a building material with clear strengths when used correctly. Clay really comes into its own in interior fit-out and the renovation of older buildings, as it regulates humidity, allows for vapour-permeable structures and combines well with other natural building materials.
Our many years of practical experience help us to look beyond just the technical specifications and consider the practical aspects: How can a material be worked with? Which substrates work well? Where are the typical pitfalls? And which solution really makes sense for the specific construction?
If you’re unsure about your choice, simply get in touch. We’ll offer you personalised, expert advice and help you find the right clay building material and a suitable construction method for your project.
Take advantage of our personalised expert advice
- 📞 Telephone: 037421 725270
- ✉️ Email: kontakt@hws-plus.de
- 💬 On-site consultation: Simply book an appointment for a face-to-face meeting at our premises.