Platinum Cure Silicone Rubber — Addition Cure RTV
Allzone Trading supplies addition-cure (platinum catalysed) silicone rubber to prototype and tooling shops, prop and effects studios, art foundries and product developers across Canada. Platinum cure silicone cures with negligible shrinkage and no by-product, which makes it the choice where dimensional accuracy and long mould life matter. Hardness, mix ratio, pot life and cure schedule are confirmed against supplier technical data at quotation.
At a glance
- Product
- Platinum Cure Silicone Rubber
- Grades
- Confirmed at quotation
- Typical applications
- Precision moulds for polyurethane and epoxy resin casting · Prototype and short-run production tooling · Prop, mask and special-effects moulds and appliances
- Packaging
- Packaging and pack size confirmed at quotation against the grade supplied
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Typical applications
- Precision moulds for polyurethane and epoxy resin casting
- Prototype and short-run production tooling
- Prop, mask and special-effects moulds and appliances
- Long-life mould libraries where dimensions must stay stable
- Fine detail reproduction in art, model and museum work
- Encapsulation and pattern duplication
Why Canadian buyers choose us
- Enquiries handled against your part, mould and process — not a fixed stock list
- Grade, working properties and mix data confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the grade actually offered
- LTL and FTL freight to studios, precast plants, fabricators and distributors across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from trial kits through to pallet and container programmes
Typical industries served
Material identity
Platinum-Cure Silicone Mould Rubber — identifiers and the names buyers use
- Cure system
- Addition (platinum catalysed) two-part RTV silicone
Also searched as
Industry terminology
Identifiers are published for material identification. The exact specification of any offered grade is confirmed against supplier documentation at quotation.
Buyer intent coverage
Platinum-Cure Silicone Mould Rubber — what it is, where it is used, how it is chosen
Platinum-cure silicone is bought when the mould has to stay dimensionally true and keep working for a long time — short-run urethane part production, prototype tooling, prosthetics and special effects. It is the more disciplined material of the two silicone families: it rewards clean patterns and correct handling and punishes contamination with cure inhibition. Shops that run repeatable production out of silicone moulds usually standardise on it despite the higher unit cost.
Primary uses
- Precision flexible mould making
- Long library life mould production
- Low-shrinkage detail reproduction
Applications
- Production moulds for urethane and epoxy casting
- Prototype and short-run part moulds
- Special effects and prosthetic moulds
- Moulds where a supplier designates skin or food contact suitability
Advantages
- Holds dimension well over a long mould life, which is what short-run production tooling is bought for
- Suits precision and prototype work where the part comes off the mould to a tolerance
- Some products carry supplier-designated skin or food-contact suitability, which tin systems generally do not
Limitations to consider
- Vulnerable to cure inhibition from sulfur, tin, amines, latex and some tapes, sealers and clays — a contaminated pattern ruins the pour
- Higher unit cost than tin-cure, so it is hard to justify for abrasive concrete casting
- Any skin or food-contact suitability belongs to the specific supplier product and is confirmed only from their documentation
- Mix ratio, pot life, working time, demould time, full-cure schedule, hardness, tear strength, elongation, shrinkage, viscosity and temperature resistance are properties of one specific supplier system. They are never quoted here from memory or by analogy with a similar product; they are read from the supplier data sheet for the exact material offered and confirmed at quotation.
How to choose the right grade
- Start from the casting material and the number of parts the mould has to produce, because durability and detail pull in opposite directions
- Describe the pattern itself — its material, porosity, undercuts and whether it can be destroyed — since that decides the mould strategy before any product is chosen
- State the shop conditions the work happens in, including temperature, ventilation and whether the job is poured in a box or brushed on in place
- List every material the rubber will touch, including modelling clay, tape, sealer and release, so inhibition risk is assessed before the pour
- Run a small patch test on the actual pattern when the pattern history is unknown
- Mould-making and casting behaviour depends on the pattern, the shop temperature and humidity, the mixing method and the operator. A production-representative trial on your own pattern and in your own shop conditions is the only honest way to qualify a material before a run is committed.
- Exact specification is confirmed against supplier documentation at quotation.
Typical grades
- Poured products for precision box moulds and part tooling
- Brushable and thickened products for skin moulds
- Products the supplier designates for prosthetic, effects or contact-sensitive work
- Buyers search this category by grade name, and those names describe what the workshop needs rather than what is asserted here. Which grade a specific offer corresponds to, and what the supplier declares for it, is read from the technical documentation issued for the exact material quoted.
- Materials in this category interact: rubbers, releases, sealers, resins, pigments and fillers can inhibit cure, stain a surface or shorten mould life when they are combined outside the combinations the supplier has tested. State every material already in the process at enquiry so compatibility is checked against supplier documentation rather than discovered on the shop floor.
- Reactive materials age in the container, and moisture-sensitive systems age faster once opened. Order against real consumption rather than against a discount, and confirm the shelf life the supplier states for the exact product and pack.
Comparable materials — how Platinum-Cure Silicone Mould Rubber sits against alternatives
- Tin-cure silicone where inhibition risk or cost dominates
- Polyurethane mould rubber for abrasive concrete casting
- Shops looking for an alternative, replacement or second-source supplier should state the incumbent product, the supplier system currently approved and the property being matched. Equivalence on family name alone is not equivalence in production: cure profile, surface behaviour, colour and release characteristics all shift between sources, so a side-by-side trial is planned before a changeover.
Comparable-material reference. Grade selection is confirmed at RFQ against your process.
Procurement coverage
How to specify, order and receive Platinum-Cure Silicone Mould Rubber
Written for procurement, quality and technical buyers in Canada and the United States. No numeric price, MOQ, stock or lead-time value is published — those are confirmed per shipment in the quotation and against the confirmed batch.
How buyers specify at RFQ
- The exact product identity and supplier system the shop needs, including the component set for a multi-part system
- The process it will be used in, and the equipment used to mix, pour, spray or apply it
- The pattern, mould or substrate it will contact, and every other material already in that process
- The properties the supplier must declare on the data sheet for your application
- The documentation set required before the material can enter production
- Exact specification is confirmed against supplier documentation at quotation.
Packaging options (industry-standard)
- Pail and drum formats are the usual industrial options for liquid systems
- Kit formats pairing the components of a two-part system are common where the shop mixes by kit
- Intermediate bulk formats are used by higher-volume producers where the plant can receive them
- Packaging options and available pack sizes are confirmed with each quotation.
Storage & handling
- Store containers closed, upright and within the temperature range the supplier states for the product
- Condition material to shop temperature before mixing; cold material behaves differently from conditioned material
- Keep moisture-sensitive components sealed, and segregate reactive components from each other in storage
- Rotate stock by receipt date and record the lot used against each production batch
- Canadian winter transport and storage matter here: several materials in this category thicken, crystallise, freeze or lose performance at low temperature, and recovery behaviour after freezing is product-specific. Confirm cold-weather handling and shop conditioning guidance against the supplier documentation before a winter delivery.
- This category includes reactive chemistry, respirable mineral dust, peroxides and solvent-borne products. Ventilation, personal protection, segregated storage and disposal requirements come from the safety data sheet for the exact product and from the requirements of the provincial regulator for your site.
Documentation available
- Technical data sheet (TDS) for the exact product offered, stating working properties as the supplier declares them
- Safety data sheet (SDS) in the format required for Canadian import, in English and French where the receiving site requires it
- Certificate of analysis (COA) or batch documentation where the supplier issues it for the confirmed lot
- Handling, mixing and storage instructions issued by the supplier for the exact system
- Test reports or conformity statements where the project specification requires them and the supplier issues them
- Documentation is confirmed per batch at quotation; availability depends on the grade and supplier offered.
- Ask for the documentation pack against the exact product at the enquiry stage rather than after the order. Documentation availability differs by supplier and by manufacturing site, and in this category the data sheet is the only place where the working properties of a system are legitimately stated.
RFQ checklist for platinum-cure-silicone-mould-rubber-canada
Include these fields to receive an accurate Canada-landed quotation
- The exact product or supplier system required, and the incumbent it is replacing where there is one
- The process, equipment and shop conditions the material will be used in
- Volume per order and expected annual usage, so the offer is built on real consumption
- Pack format your shop or plant can physically receive and handle
- Documentation required before the material can be used in production
- Delivery province or receiving location in Canada
- The casting material the mould will be used with, and the expected number of pulls
- The pattern material and whether it is porous, sealed or single-use
- Whether the job is poured, brushed, sprayed or applied in situ
- Landed cost in Canada is driven by pack format, delivery province and receiving arrangements as much as by unit price, and dense mineral products and dilute liquids both carry weight that is not function. Quotations are compared delivered to your shop or plant rather than ex-works.
Technical & procurement detail
How addition cure works+
Platinum cure silicone cures by an addition reaction with no by-product released. Nothing leaves the system, so shrinkage is negligible and the cured rubber is dimensionally stable over years rather than months. That stability is why resin casters, prototype shops and effects studios keep platinum moulds in service far longer than tin cure equivalents.
Cure inhibition is the main risk+
The same chemistry that gives clean cure makes the system sensitive. Sulphur-containing clays, latex, some tapes and adhesives, tin-cured silicone residue, certain epoxies and unsealed surfaces can poison the catalyst and leave a permanently tacky uncured layer against the master. The defence is simple: seal the master, keep platinum work away from tin work, and always cure-test a small patch on the actual master before pouring a full mould.
Selecting hardness and viscosity+
Softer grades peel off deep undercuts and delicate detail without tearing; harder grades hold registration under pressure and resist distortion in a support shell. Lower viscosity grades flow into fine detail and de-air more readily; thixotropic grades stay put on vertical surfaces. These are configurable options in the same family, chosen from the part rather than assumed.
Skin-contact and food-contact grades+
Specific platinum cure grades are formulated for skin-contact effects work or food-contact moulding. Those properties belong to the individual grade and its documentation, never to platinum cure silicone as a class. If your application requires skin or food contact, state it in the enquiry so a grade with the appropriate supplier documentation is quoted.
Specification options+
Working properties are configurable options within this canonical product, not separate products. Depending on the family, that can include grade, viscosity, mix ratio, pot life and demould time, hardness, colour, particle size or fibre length, and pack format. No configuration is presented as stocked or approved until it is confirmed against the supplier's technical data for the exact material offered. Supplier grade names, factory codes and manufacturer brands are not published here.
What to include in your enquiry+
Send the casting material, part size and detail, whether the mould must be skin-safe or food-contact, the required pot life, and how many parts the mould must produce.
Frequently asked questions
What is the difference between platinum and tin cure silicone?+
Platinum (addition) cure releases no by-product, so shrinkage is negligible and mould life is long, but it is vulnerable to cure inhibition from contaminants. Tin (condensation) cure tolerates contamination and costs less, but shrinks slightly and ages faster.
Why did my silicone stay sticky against the master?+
That is classic cure inhibition — commonly sulphur clay, latex, tin-cure residue, certain tapes or an unsealed surface. Seal the master and run a small cure test on the actual surface before committing a full pour.
Is platinum silicone suitable for casting polyurethane resin?+
It is the usual choice for urethane resin casting because it holds dimensions and gives long mould life. Release practice still follows the resin supplier's guidance.
Can it be used for skin-safe work?+
Only where the specific grade supplied carries that qualification in its documentation. State the requirement in the enquiry and a suitable grade is quoted; it is not a property of the whole class.
How is pot life extended or shortened?+
Pot life is a property of the grade and is influenced by temperature; some families also offer accelerator or retarder additives. Work from the supplier data for the grade supplied rather than adjusting mix ratio.
Are technical documents provided before ordering?+
Yes. The supplier technical data sheet and safety data sheet for the exact grade offered are provided with the quotation, and the working properties in those documents govern — not any general description on this page.
What quantities are quoted?+
Quantities are reviewed per enquiry, from trial quantities through to pallet and full container programmes for production users and distributors.
Technical knowledge for Platinum Cure Silicone Rubber Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Comparison Articles
Related products
Materials commonly quoted alongside Platinum Cure Silicone Rubber by the same plants.
Tin Cure Silicone Mould Rubber
Production moulds for cast stone, concrete and GFRC elements
Silicone Thixotropic Additive
Converting pourable silicone to a brush-on glove-mould consistency
Silicone Cure Accelerator
Shortening demould time on production silicone moulds
Polyurethane Mould Rubber
High-cycle production moulds for concrete pavers, veneer and cast stone
Need a quote on Platinum Cure Silicone Rubber?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.