Additives & Admixtures

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Everbuild 201 Mortar Admix

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£4.79 - £23.39 each (Ex VAT)

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£5.75 - £28.07 each (Inc VAT)

201 Mortar Admix is an air entraining plasticiser. It replaces lime in the mix to provide an easy-to-work butter-like consistency to the mortar and to prevent shrinkage, cracking, and crazing while setting. 201 Mortar Admix is intended for use in...

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£4.79 - £23.39 each (Ex VAT)

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£5.75 - £28.07 each (Inc VAT)
Everbuild Opti-Mix Mortar Plasticiser 1 Litre

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£11.42 each (Inc VAT)

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£9.52 each (Ex VAT)

The world's first 1:25 plasticiser, Opti-Mix Mortar Plasticiser is essentially Pure Admix that smells and operates like the best traditional Admix. Superior plasticising effect, controlled dosage, consistent mix design, ease of use, and no waste are just...

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£11.42 each (Inc VAT)

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£9.52 each (Ex VAT)
Everbuild 503 SBR Bond 5 Litre (SBR5L)

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£24.66 each (Inc VAT)

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£20.55 each (Ex VAT)

SBR Bond is a latex based, water resistant bonding agent and admixture for use in areas subject to humidity, dampness and continuous water contact. It improves water resistance of cement mixtures by forming a reinforcing polymer that increases long-term...

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£24.66 each (Inc VAT)

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£20.55 each (Ex VAT)
Everbuild Everbuild 203 Accelerator and Frostproofer 5 Litre

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£10.32 each (Inc VAT)

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£8.60 each (Ex VAT)

Accelerator & Frostproofer is a liquid additive formulated to accelerate setting and hardening times of mortar, concretes, screeds and rendering to provide frost protection during the setting period.

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£10.32 each (Inc VAT)

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£8.60 each (Ex VAT)
Bostik Bituminous Black Paint Black 5 Litre (30812219)

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£43.78 each (Inc VAT)

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£36.48 each (Ex VAT)

This Bituminous Black Paint by Bostik is a 5 Litre tin of solvent-based protective coating for external waterproofing and weather protection of ferrous and non-ferrous metals, concrete, roofing felt, fibre cement, corrugated iron, asphalt and wood. It...

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£43.78 each (Inc VAT)

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£36.48 each (Ex VAT)
Bostik Cementone Cemplas Mortar Plasticiser

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£5.60 - £27.24 each (Ex VAT)

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£6.72 - £32.69 each (Inc VAT)

Improves the workability and durability of mortar without the addition of lime. It helps reduce grittiness to provide a smooth mortar with improved durability and protection against frost. It also reduces the water content of the mortar. Containing a...

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£5.60 - £27.24 each (Ex VAT)

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£6.72 - £32.69 each (Inc VAT)
Bostik Cementone Chloride-Free Frostproofer & Plasticisier 5 Litre (30812487)

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£13.63 each (Inc VAT)

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£11.36 each (Ex VAT)

Manufactured by Bostik, this Plasticiser & Frostproofer accelerates the setting of mortar mixes year round but particularly in cold weather and during the Winter months. It also plasticises the mix to improve workability. It is ideal for bricklaying,...

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£13.63 each (Inc VAT)

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£11.36 each (Ex VAT)
Special Offer

Special Offer

Bostik Cementone Concentrated Resin Mortar Plasticiser 1 Litre (30806663)

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£11.99 each (Inc VAT)

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WAS: £11.67

£9.99 each (Ex VAT)

Manufactured by Bostik, this Concentrated Mortar Plasticiser improves the workability and freeze thaw resistance of mortar without the addition of lime. It is suitable for use in mortars for bricklaying, pointing, blockwork and rendering. The integral...

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£11.99 each (Inc VAT)

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WAS: £11.67

£9.99 each (Ex VAT)
Bostik Cementone Freeflo Waterproofer Plasticiser Retarder

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£12.00 - £49.74 each (Ex VAT)

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£14.40 - £59.69 each (Inc VAT)

Waterproofs, retards and plasticises cement-based mixes. Available in either 25 Litres or a small 5 Litre tub. Bostik Freeflo Waterproofer & Retarder waterproofs is a liquid admixture which waterproofs, retards and plasticises cement-based mixes. It...

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£12.00 - £49.74 each (Ex VAT)

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£14.40 - £59.69 each (Inc VAT)
Bostik Cementone Integral Waterproofing Liquid

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£10.82 - £53.92 each (Ex VAT)

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£12.98 - £64.70 each (Inc VAT)

Liquid additive that provides long-term water protection to mortar, non-structural concrete and rendering. Bostik Integral Waterproofer is a liquid additive that provides long-term water protection to mortar, non-structural concrete and rendering. It...

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£10.82 - £53.92 each (Ex VAT)

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£12.98 - £64.70 each (Inc VAT)
Bostik Cementone No1 Powder Cement Black 1kg (30812475)

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£12.82 each (Inc VAT)

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£10.68 each (Ex VAT)

Bostik Colours for Cement have been specifically formulated to colour cement, renders (e.g. walls, swimming pools), mortars and flooring (sand/cement screeds, granolithic floor). Bostik Colours for Cement use pigments that conform to EN 12878 and are...

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£12.82 each (Inc VAT)

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£10.68 each (Ex VAT)
Bostik Cementone No1 Powder Cement Colour Brick Red 1kg (30812477)

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£12.82 each (Inc VAT)

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£10.68 each (Ex VAT)

Bostik Colours for Cement have been specifically formulated to colour cement, renders (e.g. walls, swimming pools), mortars and flooring (sand/cement screeds, granolithic floor). Bostik Colours for Cement use pigments that conform to EN 12878 and are...

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£12.82 each (Inc VAT)

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£10.68 each (Ex VAT)
Bostik Cementone Renderbond PVA Adhesive & Sealer

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£9.27 - £15.32 each (Ex VAT)

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£11.12 - £18.38 each (Inc VAT)

Bostik PVA (formerly known as Cementone Rendabond PVA) is ready to use and is suitable for a wide range of building jobs. It is a highly effective primer, admixture, bonding agent, dust proofer and may also be used as an adhesive. It is economical and...

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£9.27 - £15.32 each (Ex VAT)

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£11.12 - £18.38 each (Inc VAT)
Bostik Cementone SBR Strengthern & Waterproofing Mortar Admixture

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£22.93 - £111.09 each (Ex VAT)

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£27.52 - £133.31 each (Inc VAT)

Toughens, waterproofs and improves chemical and abrasion resistance of renders, screeds and mortar. Bostik SBR is a specially modified Styrene Butadiene Co-polymer Latex for cement and mortar. It toughens, waterproofs and improves chemical and abrasion...

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£22.93 - £111.09 each (Ex VAT)

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£27.52 - £133.31 each (Inc VAT)
Bostik Flexacryl Instant Waterproof Acrylic Compound Roof Coat Grey 5kg (30811941)

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£110.33 each (Inc VAT)

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£91.94 each (Ex VAT)

Flexacryl is an Instant Repair for flat roofs by Bostik. It is a flexible, single coat waterproofing compound that offers immediate waterproofing over most conventional roofing substrates. It can be brushed straight from the tin onto substrates such as...

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£110.33 each (Inc VAT)

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£91.94 each (Ex VAT)
Everbuild 204 Evermix 3-in-1 5 Litre

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£11.16 each (Inc VAT)

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£9.30 each (Ex VAT)

Evermix 3 in 1 triple action admixture waterproofs, plasticises and retards to assist workability, reduce water penetration and allow larger areas to be covered in one application.

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£11.16 each (Inc VAT)

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£9.30 each (Ex VAT)
Everbuild 208 Black Powder Mortar Tone 1kg

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£12.40 each (Inc VAT)

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£10.33 each (Ex VAT)

208 Powder Mortar Tone is a high-quality oxide pigment that can be used to colour all types of mortars, renderings, concrete, and pointing. The pigments distribute into the mix to provide each batch a consistent shade; the dose can be changed to create a...

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£12.40 each (Inc VAT)

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£10.33 each (Ex VAT)
Everbuild 506 Contract PVA Adhesive & Additive Primer 5kg (CONPVA5)

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£13.92 each (Inc VAT)

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£11.60 each (Ex VAT)

Everbuild CONTRACTORS PVA in a 5 litre tub has been designed specifically for use in the building industry as a general purpose contracors bonding agent, and additive for concrete and plasters and as a multi-use primer adhesive. 506 Contractors PVA is a...

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£13.92 each (Inc VAT)

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£11.60 each (Ex VAT)
Everbuild Sikabond SBR+ 5 Litre

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£24.02 each (Inc VAT)

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£20.02 each (Ex VAT)

SikaBond SBR+ is a one component, water-based, general purpose styrene butadiene rubber emulsion bonding agent and mortar admixture for improving adhesion, workability and waterproofing of mortars.

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£24.02 each (Inc VAT)

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£20.02 each (Ex VAT)
Evo-Stik Impact Contact Spray Adhesive Amber 500ml (30812367)

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£14.08 each (Inc VAT)

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£11.73 each (Ex VAT)

The Evo-Stik contact spray adhesive is a high strength, multipurpose adhesive that bonds instantly on contact. With no need for clamping or support, this fast drying, easy spray application adhesive has the power to bond most types of materials, and...

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£14.08 each (Inc VAT)

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£11.73 each (Ex VAT)
Soudal High Viscosity Superglue 50g (115107)

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£2.62 each (Inc VAT)

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£2.18 each (Ex VAT)

Super fast curing, Cyanoacrylate based Superglue adhesive. Fast bonding of non porous surfaces, such as rubber, metals, plastics, glass etc. Adhesion can be accelerated using Soudal Superglue Activator.

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£2.62 each (Inc VAT)

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£2.18 each (Ex VAT)
Soudal Soudabond 265 Classic Contact Adhesive Spray 500ml (146309)

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£5.45 each (Inc VAT)

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£4.54 each (Ex VAT)

Soudabond 265 Classic Spray by Soudal is a universal, ready-to-use contact adhesive. The spray applied adhesive is easy-to-use and provides a strong bond between most lightweight materials; especially effective on textiles, flexible floor coverings and...

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£5.45 each (Inc VAT)

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£4.54 each (Ex VAT)
Soudal Soudafix P300-F Resin Dark Grey 280ml (154406)

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£11.15 each (Inc VAT)

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£9.29 each (Ex VAT)

Soudafix P300-SF is a polyester resin based chemical anchor. Ideal for anchoring of threaded rods in masonry (18 brick types) and uncracked concrete (ETA approval option 7). Suitable for installation in hollow and solid masonry: aerated and lightweight...

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£11.15 each (Inc VAT)

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£9.29 each (Ex VAT)
Soudal Superglue Activator 200ml (114746)

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£4.37 each (Inc VAT)

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£3.64 each (Ex VAT)

Solvent based aerosol spray activator, used in conjunction with Soudal Superglue. Spray applied and accelerates adhesion speed of Soudal Superglue products. It also reduces blooming and odour as well being non-yellowing.

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£4.37 each (Inc VAT)

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£3.64 each (Ex VAT)

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There are major differences between additives and admixtures when it comes to cement and concrete admixtures. Additives can be any substance added to something in small quantities which ultimately improves or preserves it, whereas admixture are components added to a concrete mixture while mixing. For example, to make concrete, there are three core ingredients: aggregates, cement, and water.

Examples of some chemical admixtures are: air-entraining, water-reducing, retarding, accelerating and plasticizers - which all ultimately reduce the cost of building with concrete, and are used to ensure that certain properties maintain a cured concrete quality.

For further expert advice and guidance on admixtures and additives, please contact your friendly local Howarth branch.