Parylene Dimers – High-Purity Materials for Reliable Coatings
Batch-traceable Parylene dimer supply supported by technical documentation, grade-specific compliance data, and wider Parylene process support
SCH Services Ltd supplies high-purity Parylene dimers including N, C, D and F / AF-4 for consistent deposition across commercial and R&D Parylene coating systems. Every batch is batch-traceable, supplied in controlled packaging, and supported by documentation suitable for regulated sectors including aerospace, medical, and electronics.
We support both in-house coaters and subcontract users with the right dimer grade, pack size, and supply route, from development quantities through to ongoing production demand.
If you need more than raw material supply, SCH can also support dimer selection, implementation planning, equipment setup, training, and long-term process stability through our wider turnkey Parylene platform.
If you are selecting between grades, start with our Parylene dimer selection guide. If specifications are unclear, even the correct choice can fail in practice — see our insight on Parylene specification failures.
High-purity Parylene dimer supply supporting stable deposition, reliable polymerisation, and traceable process control.
Why Buy Parylene Dimers from SCH?
- High Purity & Consistency: controlled production with batch QC and supporting documentation for regulated and high-reliability sectors.
- Proven in Real Processes: the same dimer grades are used within SCH’s own Parylene coating services and technical work.
- Flexible Supply Options: pack sizes vary by grade, with standard commercial packs plus custom sizes available where required.
- Technical Support: guidance on grade selection, handling, storage, and process planning from experienced Parylene engineers.
- Global Logistics: established supply into Europe, North America, and Asia with export paperwork and support.
Need More Than a Material Supplier?
Choosing the right dimer is only one part of a successful Parylene process. Deposition rate, grade qualification, equipment sizing, throughput planning, and operator knowledge all affect long-term coating performance.
🧪 Explore the Bigger Picture – SCH can support the full route from dimer selection through to equipment, training, and implementation.
Independent SGS Verification – SCH Parylene Dimer Range
Independent SGS screening supports the compliance position of the SCH Parylene dimer range, including REACH SVHC, RoHS, and additional environmental substance screening where applicable.
Testing coverage is now presented on a grade-specific basis. Parylene N, C and D are supported by broader extended substance screening, while F / AF-4 has its own defined test package and should be reviewed on its individual page for exact coverage.
This supports a more evidence-based supply position, with clearer visibility of material specification, traceability, and compliance support by grade.
Grade-specific summaries and supporting technical documents are available on request or via the individual product pages.
Find out more about why Parylene dimer purity affects coating quality in our Dimers Hub.
Available Parylene Dimer Grades
Parylene N Dimer
Base chemistry with excellent dielectric strength and deep penetration for complex geometries and fine features.
Parylene C Dimer
Most widely used grade, selected for strong moisture and chemical resistance across high-reliability applications.
Parylene D Dimer
Double-chlorinated grade offering higher thermal capability than Parylene C for more demanding environments.
Parylene F / AF-4 Dimer
Fluorinated precursor with very low dielectric constant, enhanced thermal stability, and demanding-environment performance.
Not sure which dimer is right for your application? See our guide to choosing the right Parylene dimer.
Compare Grades at a Glance
Use this quick view to shortlist the right Parylene dimer for your application.
Quality, Traceability & Packaging
- High-purity grades suitable for major commercial and R&D deposition systems.
- Batch-coded, controlled packaging used to support material integrity and shelf life.
- Pack sizes vary by grade, with standard commercial formats and custom options available.
- Certificates of Conformance and handling guidance supplied.
- Grade-specific technical and compliance documentation available on request.
Request Parylene Dimer Pricing or Technical Data
Tell us your grade, pack size, deposition system, and delivery location. We will confirm availability, lead time, and the most suitable route forward.
📞 +44 (0)1226 249019 ✉ sales@schservices.com
Technical Background
For chemistry and selection detail, see:
- Parylene Dimers Hub
- What is Parylene Dimer?
- Parylene Dimer Comparison (N, C, D & AF-4)
- How Dimer Purity Affects Coating Quality
- Choosing the Right Dimer for Your Application
Learn more about Parylene chemistry related to conformal coatings.
Parylene Dimer FAQs
Which Parylene dimer should I choose?
As a rule of thumb: N for penetration and high dielectric strength, C for moisture and chemical resistance, D for higher thermal capability, and AF-4 for very low dielectric constant and demanding high-performance environments. If you are unsure, SCH can review your application and help you choose the most suitable grade.
What pack sizes are available?
Pack sizes vary by grade. Standard commercial formats are available across the dimer range, with custom sizes and private-label supply also available in some cases depending on grade and quantity.
How should Parylene dimers be stored?
Keep dimers sealed in their original containers, away from heat and moisture. Follow the supplied handling guidance to maintain quality and shelf life.
Are your dimers compatible with my deposition system?
Yes — SCH high-purity grades are intended for use across major commercial Parylene systems. If you provide your make and model, SCH can help confirm suitability and discuss grade selection.
Can SCH support grade qualification as well as supply?
Yes. SCH can support material selection, application review, process planning, and broader implementation support if you are qualifying a new grade or setting up in-house coating capability.
