{"id":352,"count":6,"description":"
\r\n

Knauf cement-based plasters \u2013 a hard, durable and moisture-resistant solution for foundations, plinths, cellars and substrates requiring reinforcement. Check out the full range of Knauf products from PK Complex, including specifications and prices \u2013 order with a lowest price guarantee!<\/p>\r\n\r\n

What is cement plaster and where is it used?<\/h2>\r\nCement plaster is a mortar based on Portland cement, sand and water, enriched with modifying additives. This means that, compared with other mineral plasters, it achieves the highest hardness and the best resistance to water and mechanical loads, at the cost of slightly lower workability during application.\r\n\r\nCement plaster is particularly suitable where maximum strength and resistance to constant exposure to moisture are essential: on building plinths, foundations, basement walls, in garages and utility rooms, as well as a base coat for waterproofing or ceramic tiling on difficult substrates. This solution is mainly used where a wall is exposed to contact with groundwater, capillary moisture or mechanical damage.\r\n

Cement plaster versus cement-lime plaster \u2013 how do they differ?<\/h2>\r\nCement plaster and cement-lime plaster are two different products in the Knauf range, each suited to different applications. Cement plaster \u2013 thanks to its higher cement content \u2013 is harder, more water-resistant and performs better on plinths, foundations and substrates subject to high levels of ground moisture.\r\n\r\nCement-lime plaster, thanks to the presence of lime, is more workable and easier to apply by hand, which is why it is more commonly chosen for plastering internal walls and fa\u00e7ades on a larger scale.\r\n\r\nIf you\u2019re looking for plaster for standard application on external walls, bathrooms or living spaces, take a look at cement-lime plasters<\/a> in the PK Complex range. There you\u2019ll find Knauf products specially selected for these applications, along with a full description of their properties and specifications.\n\nYou may also want to read our post comparing different types of plaster, which will help you choose the right material: Gypsum plaster or cement-lime plaster \u2013 a comparison<\/a>.\r\n

Properties of Knauf cement-based plasters available from PK Complex<\/h2>\r\n

Hardness and mechanical strength<\/h3>\r\nThe high cement content gives this cement plaster the greatest hardness of any of the mineral plasters available in our range. It is a material resistant to scratches, impacts and abrasion, which is why it is ideal for high-traffic areas such as garages or utility corridors.\r\n

Resistance to water and ground moisture<\/h3>\r\nCement plaster absorbs virtually no water by capillary action \u2013 once set, it forms a dense structure with low water absorption. This makes it the material of choice wherever a wall is in direct contact with groundwater: on foundations, plinths and in cellars.\r\n

Shelf life and setting time<\/h3>\r\nCement plaster sets and hardens gradually \u2013 it reaches its full mechanical strength after approximately 28 days. Knauf products in this range comply with the requirements of the PN-EN 998-1 standard. Do not accelerate drying with heaters, nor expose freshly applied plaster to direct sunlight or frost.\r\n

How do you properly prepare the substrate for cement plaster?<\/h2>\r\nStep 1.<\/strong> Clean the substrate \u2013 remove dust, loose particles, formwork oils and residues of release agents. The substrate must be stable and free from contaminants.\r\n\r\nStep 2.<\/strong> Assess absorbency and dampness \u2013 pay particular attention to the presence of ground damp on foundations and plinths; if necessary, install damp-proofing beforehand.\r\n\r\nStep 3.<\/strong> Prime highly absorbent substrates \u2013 apply a deep-penetrating or bonding primer to concrete, brick or old walls, and wait at least 12\u201324 hours before plastering.\r\n\r\nStep 4.<\/strong> Use guides for larger surfaces or when applying by machine \u2013 they will ensure an even layer thickness.\r\n\r\nStep 5.<\/strong> Ensure the right conditions for application \u2013 do not plaster at temperatures below +5\u00b0C or above +30\u00b0C. Protect fresh plaster from direct sunlight and frost for at least 24 hours.\r\n

Knauf cement-based plasters with a lowest price guarantee<\/h2>\r\nPrices for Knauf cement-based plasters in the PK Complex range start at around 24 z\u0142 per 30 kg bag. For larger orders \u2013 such as for foundations, plinths for entire buildings or multi-family housing projects \u2013 prices are negotiable. Please contact us before placing your order, and we\u2019ll tailor our offer to the scale of your project.\r\n\r\nPK Complex offers a lowest-price guarantee, so you can be sure you\u2019re getting the best value for money. We\u2019re an official Knauf partner, so when you buy from us, you\u2019re getting genuine products with a full manufacturer\u2019s warranty.\r\n\r\nNot sure how many bags to order? Get in touch with us! We\u2019ll help you calculate the area and advise you on how much material you\u2019ll need.\r\n

FAQ \u2013 Frequently asked questions about Knauf cement-based plasters<\/h2>\r\n

How does cement plaster differ from cement-lime plaster?<\/h3>\r\nCement plaster contains more cement and less or no lime, making it harder and more water-resistant \u2013 it is mainly used on plinths, foundations and substrates subject to high levels of moisture. Cement-lime plaster is more workable and easier to apply, which is why it is more commonly chosen for plastering internal walls and fa\u00e7ades.\r\n

What is cement plaster used for?<\/h3>\r\nCement plaster is primarily used on foundations, plinths, basement walls, in garages and utility rooms, and as a base coat beneath waterproofing or cladding on difficult and heavily loaded substrates.\r\n

How long does cement plaster take to dry?<\/h3>\r\nCement plaster is ready for further treatment after approx. 24\u201348 hours, whilst it achieves its full mechanical strength and water resistance after approx. 28 days. Drying time depends on the temperature, relative humidity and the thickness of the applied layer.\r\n

Is cement plaster suitable for use on a fa\u00e7ade?<\/h3>\r\nCement plaster can be used on plinths and the lower sections of fa\u00e7ades exposed to ground moisture and mechanical damage. For plastering the rest of the fa\u00e7ade, cement-lime plaster is usually chosen \u2013 it is easier to work with over large areas.\r\n

What is the recommended thickness of cement plaster for foundations and plinths?<\/h3>\r\nThe standard thickness of cement-based plaster on foundations and plinths ranges from 10 to 20 mm, depending on the condition of the substrate and the required protection against damp. The maximum thickness for a single application is always specified in the technical data sheet for the specific product.\r\n\r\n \r\n\r\n<\/div>","link":"https:\/\/sklep.pkcomplex.pl\/en\/product-category\/systemy-tynkarskie\/tynki-cementowe\/","name":"CEMENT-BASED PLASTERS","slug":"tynki-cementowe","taxonomy":"product_cat","parent":178,"meta":[],"_links":{"self":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product_cat\/352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"up":[{"embeddable":true,"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product_cat\/178"}],"wp:post_type":[{"href":"https:\/\/sklep.pkcomplex.pl\/en\/wp-json\/wp\/v2\/product?product_cat=352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}