Our Products


PEROXIDES INITIATORS

We have been supplying Peroxide Initiators for over 12 years and supply to the majority of the UK silicone producers.

Peroxides can be used to cure many synthetic rubbers and plastics and have several advantages over sulphur cure.

Please see below our current production list.

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PLATINUM CATALYSTS

Platinum Catalysts (concentrates)

These catalysts are employed in the hydrosilylation reaction between silanol terminated PDMS and methylhydrosiloxane-dimethylsiloxane copolymers.
Load use, typically less than 0.1%.
Sulphur and nitrogen compounds should not be incorporated into the formulations as they have a deleterious effect on the catalysts.

Listed below are standard concentrations, we can however make these catalysts in whatever Platinum concentration you require.
 

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PEROXIDE CO-AGENTS

Do you want to increase the mechanical properties of your elastomer.
But do not wish to go to the expense and hassle of reformulating!


Why not use a Peroxide co-agent.

 

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MODERATORS & MODIFIERS

Moderators can be employed to retard the curing process. This can be important in elevated temperature cure systems and in formulations that require a lot of fine detail work that takes a considerable amount of time to complete.
Modifiers can also be used to give greater stability at high temperatures and to act as plasticisers.
 

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SILICONES FLUIDS - REACTIVE

We manufacture and supply a broad range of reactive silicone fluids in a broad range of viscosities, including,

Silanol PDMS’s     Vinyl PDMS’s   Hydride PDMS’s   Amine PDMS’s
Methacrylate PDMS’s

If you have an interest in reactive silicone fluids then we would be happy to discuss your requirements in a straight forward and open manner.

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SILICONE FLUIDS - NON REACTIVE

Conventional Silicone Fluids are utilised extensively in many applications.

They are used particularly in synthetic rubbers and plastics as plasticisers and to give a ‘soft touch’ to elastomers.
We manufacture a broad range of viscosities and welcome any enquiries you may have.
 

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FLUORO SILICONE GUMS & COMPOUNDS

FluoroSilicones combine the advantages of Silicones with that of Fluorocarbons and give a unique and wide set of physical properties that are increasingly being sought after in industries such as aerospace, automotive & chemical processing.

Uses in fuel, oil, solvent & aggressive chemical seals, gaskets, grommets, hoses, couplings, etc, are now common.

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SILANES & SILOXANES

Silanes and Siloxanes can be utilised in many rubber and plastic formulations to enhance required properties and to modify elastomers to fulfil a particular role.
If you are interested in modifying your elastomeric formulations we would be happy to hear from you and give straight forward advice.
 

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FUMED SILICA

Several filler types are typically used in silicone compounds ranging from ground mineral silicates, which are cheap, heat resistant and do not effect the cure rate. The down side is usually the relatively large particle size and wide distribution of particle size as well as varying consistency of minerals. As a replacement precipitated silica is often used, which has a much more controlled nature and includes much tighter tolerances for particle size and purity. The main problem in relation with silicone compounds is the amount of water present, due to the production method usually the silica has about 25% of chemically bound water and about 4-6 % of absorbed water. Although the water aids the mixing process it does have a deleterious effect on the cured elastomer.

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TITANIUM & TIN CATALYSTS

 Acetoxy one-part systems typically employ tin complexes as catalysts.

Alkoxy systems are routinely catalysed by a combination of titanates and tin compounds.

Two-part formulations also utilise tin catalysts and typically employ a greater concentration than one-part systems.

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FLAME RETARDANTS

 Metal hydroxides, such as Aluminium hydroxide (ATH) and Magnesium hydroxide (MgDH) are utilised to provide a safe and cost efficient method of flame retardance in many rubber compounds. Both can be supplied, vinylsilane treated for better compatibility and processing. If you have an interest in flame and smoke reduction, then we welcome your enquiries.

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ANTI-SCORCH ADDITIVES

 Sometimes premature curing (scorching) can effect polymeric formulations, causing loss of material and processing problems. There are a number of ways to reduce this problem, the first would be to check for hot spots in the mould or extruder using a pyrometer. Secondly the gums can be kept cool before processing. Thirdly a different peroxide can be employed, one that has a higher half life and therefore reacts at a higher temperature.

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RUBBER BONDING AGENTS

 Our ‘S’ Range of bonding agents have been specifically developed for hard to bond cured synthetic polymers such as;

peroxide cured silicones, fluoropolymers, HNBR, platinum cured silicones, fluorosilicones.

Bonding to metals, glass and a range of difficult substrates such as; fabrics, PP, PE, PPTA.

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