{"id":278067,"date":"2021-08-26T11:26:10","date_gmt":"2021-08-26T11:26:10","guid":{"rendered":"https:\/\/www.sanier.pl\/bw-hasla\/gladz\/"},"modified":"2025-02-12T07:55:29","modified_gmt":"2025-02-12T07:55:29","slug":"gladz","status":"publish","type":"knowledgebase","link":"https:\/\/www.sanier.pl\/en\/bw-hasla\/gladz\/","title":{"rendered":"Finishing Plasters"},"content":{"rendered":"<h2><strong>Types of Finishing Plasters<\/strong><\/h2>\n<p>The primary distinguishing feature of finishing plasters is their <strong>composition<\/strong>. The following types of products are available on the market:<\/p>\n<ul>\n<li><strong>Gypsum-based<\/strong> \u2013 The most commonly used type. They are popular among contractors due to their <strong>easy application<\/strong> and <strong>long working time<\/strong>, allowing for surface adjustments. They ensure a <strong>perfectly smooth finish<\/strong> for walls and ceilings.<\/li>\n<li><strong>Cement and cement-lime<\/strong> \u2013 These have <strong>a coarser grain<\/strong> than gypsum plasters, making them harder to apply and less smooth. However, they are more <strong>resistant to moisture and mechanical damage<\/strong>.<\/li>\n<li><strong>Lime and gypsum-lime<\/strong> \u2013 Intended for smoothing walls finished with <strong>lime or gypsum-lime plasters<\/strong>. Like gypsum plasters, they should <strong>not be used in humid environments<\/strong>.<\/li>\n<li><strong>Polymer-based<\/strong> \u2013 Easier to apply and process than gypsum plasters, providing an <strong>exceptionally smooth surface<\/strong>. They can be used in rooms with <strong>higher humidity levels<\/strong>.<\/li>\n<\/ul>\n<h2><strong>Gypsum Finishing Plasters<\/strong><\/h2>\n<p>Its production begins with finely ground <strong>synthetic or natural gypsum<\/strong>.<\/p>\n<ul>\n<li><strong>Natural gypsum<\/strong> is <strong>whiter<\/strong> and has a <strong>longer setting time<\/strong>.<\/li>\n<li><strong>Synthetic gypsum<\/strong> is <strong>more resistant to mechanical damage<\/strong>.<\/li>\n<\/ul>\n<p><strong>Gypsum plasters should not be used in high-humidity areas<\/strong> such as <strong>bathrooms, laundry rooms, drying rooms, or cold storage facilities<\/strong>. Due to their <strong>moisture-absorbing properties<\/strong>, they may detach from the surface or crack over time.<\/p>\n<p><strong>Gypsum can cause corrosion when in contact with steel<\/strong>, so <strong>metal elements must be isolated<\/strong> to prevent rusting.<\/p>\n<p><strong>Gypsum plasters require sanding after drying<\/strong>, which is a <strong>dusty and inconvenient<\/strong> process. However, <strong>dust-free alternatives<\/strong> exist that require only precise one-coat application.<\/p>\n<p><strong>White gypsum plasters<\/strong> contain <strong>alabaster<\/strong>, giving them a bright white color, reducing the need for additional white paint.<\/p>\n<p><strong>Sold as a dry mix<\/strong> in bags, requiring mixing with water before use. Some products allow <strong>wet smoothing<\/strong>, eliminating sanding and reducing dust.<\/p>\n<h2><strong>Lime Finishing Plasters<\/strong><\/h2>\n<p>Lime-based plasters use <strong>lime as the binder<\/strong> and create a <strong>thin layer<\/strong> (\u22645mm).<\/p>\n<ul>\n<li>Can be applied <strong>manually or mechanically<\/strong>.<\/li>\n<li><strong>Highly breathable<\/strong> with <strong>excellent adhesion<\/strong>.<\/li>\n<li>Suitable for <strong>high-humidity areas<\/strong>.<\/li>\n<li>Recommended for <strong>lime, cement-lime, and concrete substrates<\/strong> (&#x274c; Not for gypsum surfaces).<\/li>\n<li><strong>Mold-resistant<\/strong>, ensuring a <strong>healthy indoor climate<\/strong>.<\/li>\n<\/ul>\n<p><strong>Should be smoothed while wet<\/strong> but can also be sanded.<\/p>\n<h2><strong>Cement Finishing Plasters<\/strong><\/h2>\n<p>Cement and <strong>cement-lime plasters<\/strong> use <strong>cement as the binder<\/strong> and are <strong>highly durable<\/strong>.<\/p>\n<ul>\n<li>Sold as <strong>dry mixes<\/strong>, requiring <strong>water<\/strong> for preparation.<\/li>\n<li><strong>More durable but less smooth<\/strong> compared to gypsum plasters.<\/li>\n<li>Ideal for <strong>high-humidity environments<\/strong>.<\/li>\n<li><strong>No sanding required<\/strong>, reducing dust during application.<\/li>\n<li>Available in <strong>white variants<\/strong>.<\/li>\n<li>Applied in <strong>two or three layers<\/strong>, depending on the substrate condition.<\/li>\n<li><strong>Vapor-permeable<\/strong>, allowing walls to \"breathe.\"<\/li>\n<li>Can be applied <strong>manually or with machines<\/strong> (thickness: <strong>1-3 mm<\/strong>).<\/li>\n<\/ul>\n<h2><strong>Polymer Finishing Plasters<\/strong><\/h2>\n<p>Unlike gypsum and cement plasters, <strong>polymer-based plasters<\/strong> offer <strong>greater flexibility<\/strong>, making them ideal for:<\/p>\n<ul>\n<li><strong>Difficult substrates<\/strong> (e.g., walls experiencing minor structural movement).<\/li>\n<li><strong>High-humidity environments<\/strong>.<\/li>\n<\/ul>\n<p>Available as <strong>dry mix or ready-to-use paste<\/strong> in plastic buckets.<\/p>\n<p><strong>Requires sanding<\/strong>, so <strong>dust generation is unavoidable<\/strong>.<\/p>\n<p>Can be applied <strong>manually or mechanically<\/strong> (thickness: <strong>1-3 mm<\/strong>).<\/p>\n","protected":false},"author":1,"featured_media":280346,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","categories":[873],"tags":[],"class_list":["post-278067","knowledgebase","type-knowledgebase","status-publish","has-post-thumbnail","hentry","category-knowledge-base"],"_links":{"self":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/knowledgebase\/278067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/knowledgebase"}],"about":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/types\/knowledgebase"}],"author":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/comments?post=278067"}],"version-history":[{"count":0,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/knowledgebase\/278067\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/media\/280346"}],"wp:attachment":[{"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/media?parent=278067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/categories?post=278067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sanier.pl\/en\/wp-json\/wp\/v2\/tags?post=278067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}