{"title":"Plaster Additives \u0026 Fillers","description":"\u003cp\u003eThis specialised range features plaster \u003cb\u003eAccelerators and Retarders\u003c\/b\u003e to give you precise control over your plaster set times, alongside \u003cb\u003ePolyCryl® Plaster Polymer\u003c\/b\u003e—a water-based acrylic liquid additive that dramatically strengthens alpha plasters like Crystacal R to reduce brittleness, chipping, and cracking. Rounding out the collection are high-performance thermal and lightweighting solutions, including \u003cb\u003eVermiculite\u003c\/b\u003e and \u003cb\u003eSiniat’s G400E Perlite MicroSpheres\u003c\/b\u003e, which reduce cast weight without compromising structural integrity.\u003c\/p\u003e","products":[{"product_id":"plaster-retarder-size","title":"Plaster Retarder (Size \/ Trisodium Citrate)","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePlaster Retarder (Trisodium Citrate) is a strong retarder used to control and slow the setting time of your casting plaster. This enables you can mix larger batches, cast larger moulds and volumes and gives you more working time when required.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003ePlaster Retarder is a safe-to-use granular material called Trisodium Citrate, which needs to be dissolved in water and used as a concentrate that is added to the gauging water before mixing in the plaster powder. We recommend 100g of Retarder to 1ltr of hot water and allow to cool before use. This concentrate should then be used to add to your gauging water. As all plasters have different set times, it is difficult to be specific about how much to add and how much it will slow down the plaster. As a guide, we suggest adding 5ml of the dissolved retarder per litre of gauging water, this will slow down the plaster set time by about 5 minutes.\u003c\/p\u003e\n\u003cp\u003eBeing a very strong concentration only small amounts are needed. We strongly recommended a small test be carried out to ascertain and calculate the needed reactions.\u003c\/p\u003e\n\u003cp\u003ePlease note; Our Plaster Retarder is designed for use with Casting Plasters, such as Fine Casting Plaster and Prestia Casting Plaster. We have not tested it with building or wall plasters and believe it will not work.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Industrial Plasters","offers":[{"title":"1kg","offer_id":21733870239857,"sku":"PLA06701","price":10.29,"currency_code":"GBP","in_stock":true},{"title":"5kg","offer_id":21733870272625,"sku":"PLA06705","price":41.15,"currency_code":"GBP","in_stock":true},{"title":"25kg Bag","offer_id":21733870305393,"sku":"PLA06725","price":114.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/files\/Plaster_Retarder_Thumbnail.png?v=1770124665"},{"product_id":"plaster-accelerator","title":"Plaster Accelerator","description":"\u003cp\u003e\u003cspan\u003eAlso known as plaster setting time accelerator granules, \u003c\/span\u003ePlaster Accelerator can be added to all casting plasters to speed up the set time.\u003c\/p\u003e\n\u003cp\u003eFor the majority of users, casting plasters set fast enough; there are, however, many situations where it is not fast enough – like high-speed production line castings, slush moulding applications and very small minute-piece castings.\u003c\/p\u003e\n\u003cp\u003ePlaster Accelerator is a granular chemical to be mixed with the gauging water before adding it to plaster powder.  Because of the vast variation in setting times of our plasters, it is challenging to make a firm recommendation for dosage; however, it is a very strong-acting material, so it must be used sparingly.  We strongly recommend a small test being carried out to ascertain and calculate the most appropriate addition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e Our Plaster Accelerator is designed for use with Casting Plasters, such as Fine Casting Plaster and Prestia Casting Plaster. This product has not been tested with building or wall plasters.\u003c\/p\u003e","brand":"Industrial Plasters","offers":[{"title":"1kg","offer_id":21733870633073,"sku":"PLA59001","price":6.3,"currency_code":"GBP","in_stock":true},{"title":"5kg","offer_id":39798976184433,"sku":"PLA59005","price":27.19,"currency_code":"GBP","in_stock":true},{"title":"20kg","offer_id":21733870665841,"sku":"PLA59025","price":79.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/files\/Plaster_Accelerator_Thumbnail.png?v=1770124316"},{"product_id":"siniat-g400e-perlite-microsphere","title":"G400E Perlite MicroSphere Lightweight Filler","description":"\u003cp\u003eG400E Perlite MicroSphere is a naturally expanded perlite mineral composed of fine hollow particles. It is white and extremely lightweight, making it an ideal filler for use in plasters and resins to reduce the weight of casts. It also acts as a thixotropic to thicken plaster and resins into a paste.\u003c\/p\u003e\n\u003cp\u003e15kg is approximately 60ltrs in volume and is safe and easy to use, a non-toxic fine powder with a low dust factor.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eG400 can be used for;\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaking lightweight castings, reducing weight by +\/- 50% without seriously compromising hardness and strength.\u003c\/li\u003e\n\u003cli\u003eIncreasing the viscosity of casting and mould materials\u003c\/li\u003e\n\u003cli\u003eUse as a thixotropic for plaster and resin to make a paste consistency\u003c\/li\u003e\n\u003cli\u003eUse as a general bulking agent for large castings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen used with plaster, a 1:1 mix \u003cu\u003eby volume,\u003c\/u\u003e G400 and Plaster, the resultant cast weighs approximately 50% less than a solid plaster cast when dry. It should be remembered that water demand, hardness, setting times, expansion and drying times will all be different than when using neat plaster, so a trial is recommended.\u003c\/p\u003e\n\u003cp\u003eSpecifications:\u003c\/p\u003e\n\u003cp\u003eBulk Density:             195 kg\/m\u003csup\u003e3\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003eSolubility:                   Insoluble in water and solvents\u003c\/p\u003e\n\u003cp\u003eSurface pH:                7.0\u003c\/p\u003e\n\u003cp\u003eMelting point:           1260 \u003csup\u003eo\u003c\/sup\u003eC\u003c\/p\u003e\n\u003cp\u003eReaction to fire:        A1\u003c\/p\u003e\n\u003cp\u003eUnlimited shelf life (provided the product is kept in a protected environment).\u003c\/p\u003e","brand":"Industrial Plasters","offers":[{"title":"15kg","offer_id":40187015463025,"sku":"G4008K","price":72.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/files\/Perlite_Microsphere_New.png?v=1777655528"},{"product_id":"vermiculite-lightweight-plaster-filler","title":"Vermiculite Lightweight Plaster Filler","description":"\u003cp\u003e\u003cspan\u003eVermiculite is an excellent lightweight plaster filler. By incorporating this specialised mineral into your mix, you change standard plasters into a more versatile material. \u003c\/span\u003eThis additive significantly reduces the overall weight of the plaster cast, thereby opening up a wider range of applications.\u003c\/p\u003e\n\u003cp\u003eAvailable in medium and superfine grades. The medium grade will produce a lighter cast; however, it will reduce plaster strength slightly more than the superfine grade.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e \u003c\/p\u003e","brand":"Industrial Plasters","offers":[{"title":"Superfine \/ 100ltr \/ 10kg","offer_id":41327527690353,"sku":"VERMIC100","price":34.95,"currency_code":"GBP","in_stock":true},{"title":"Medium \/ 100ltr \/ 10kg","offer_id":57241648529790,"sku":"VERMED100","price":38.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/files\/vermiculite_thumbnail_2.png?v=1777655527"},{"product_id":"polycryl-plaster-polymer","title":"PolyCryl® Plaster Polymer - Boosts Flexural Strength \u0026 Scratch Resistance","description":"\u003cp\u003e\u003ca name=\"_Hlk206115261\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003ca name=\"_Hlk206115261\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cb\u003ePolyCryl\u003cspan\u003e®\u003c\/span\u003e Plaster Polymer\u003c\/b\u003e is a high-performance water-based, non-flammable acrylic liquid additive, designed to boost the flexural strength of casting plasters, making them both water-resistant and scratch-resistant. This is \u003cspan\u003eperfect for both casting and laminating applications and ideal for casts that are often handled or are fitted in high-traffic areas. \u003c\/span\u003eIt is best used with alpha plasters. We have carried out tests with excellent results, specifically with \u003cb\u003eCrystacal R Plaster\u003c\/b\u003e at a \u003cspan style=\"text-decoration: underline;\"\u003e\u003cb\u003e2.5:1 plaster-to-polymer mix ratio\u003c\/b\u003e.\u003c\/span\u003e\u003cspan style=\"mso-bookmark: _Hlk206115261;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"mso-bookmark: _Hlk206115261;\"\u003eWith a demould time of \u003cstrong\u003e50 - 60 minutes\u003c\/strong\u003e, PolyCryl® makes production efficient without compromising quality. It's quick and easy to use. Mix mechanically using a battery drill and mixing blade for consistent, lump-free results. \u003cbr\u003e\u003cbr\u003ePolyCryl®is also an excellent eco-friendly alternative to polyester resin for mould jackets; it delivers superior durability while reducing environmental impact.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 0cm; line-height: normal;\"\u003e\u003cspan style=\"mso-bookmark: _Hlk206115261;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 6.0pt; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eApplications:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\" style=\"margin-top: 0cm;\"\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eDecorative casts and mouldings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003e\n\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eHigh-impact laminated panels\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eThin and lightweight wall panels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eSculptural work\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l1 level1 lfo2; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: 'Open Sans';\"\u003eCoating for polystyrene and expanded foams \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 6.0pt; line-height: normal;\" class=\"MsoNormal\"\u003e\u003cb\u003eKey Benefits:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\" style=\"margin-top: 0cm;\"\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eSignificantly improves the durability of \u003cstrong\u003e\u003ca href=\"https:\/\/industrialplasters.com\/products\/crystacal-r-hard-plaster\" title=\"Crystacal R Plaster\" rel=\"noopener\" target=\"_blank\"\u003eCrystacal R Plaster\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eHigh acrylic content reduces brittleness, chipping \u0026amp; cracking\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eBoosts flexural strength for tougher, longer-lasting pieces\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eEnhances scratch resistance for a smoother finish\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eDemould time: \u003cstrong\u003e50 - 60 minutes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eCan be cast in thin or thick sections\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eExcellent detail reproduction\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eExcellent weather and water resistance\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eSafe and easy to use, water-based, non-flammable, and not classified as toxic or carcinogenic.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6.0pt; line-height: normal; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\" class=\"MsoNormal\"\u003eBest stored in an airtight container, away from frost and direct sunlight. \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Industrial Plasters","offers":[{"title":"5kg","offer_id":56100897554814,"sku":"PLA58005","price":29.0,"currency_code":"GBP","in_stock":false},{"title":"10kg","offer_id":56100897587582,"sku":"PLA58010","price":57.0,"currency_code":"GBP","in_stock":false},{"title":"20kg","offer_id":56100897620350,"sku":"PLA58025","price":109.0,"currency_code":"GBP","in_stock":false},{"title":"120kg","offer_id":56100897653118,"sku":"PLA58120","price":644.0,"currency_code":"GBP","in_stock":false},{"title":"1000kg IBC (Qty = Kg)","offer_id":56100897685886,"sku":"PLA581000","price":3.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/files\/polycryl_thumbnail_f484c59a-025c-4be4-8b32-2e58b71a80de.png?v=1789987091"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/8093\/6561\/collections\/additives_for_plaster.png?v=1777021782","url":"https:\/\/industrialplasters.com\/collections\/plaster-additives-and-fillers.oembed","provider":"Industrial Plasters","version":"1.0","type":"link"}