Advanced Sealant Systems
Purpose-engineered MS polymer platforms for EV battery assembly, flame-retardant transport interiors, and automated seam sealing — where standard products cannot meet the specification.
Most MS polymer sealants are formulated for general construction and maintenance applications. Silantek Chemical's advanced systems are different — they are purpose-engineered platforms developed for production environments where standard sealant products fail to meet the specification. Each system addresses a specific set of converging technical requirements that cannot be resolved by adjusting the filler loading or cure speed of a commodity formulation. They require deliberate polymer selection, filler system engineering, and rheology optimization to meet performance envelopes that sit outside the capability range of general-purpose MS polymer products.
These are the platforms where integrated silane-to-sealant manufacturing capability provides a genuine technical advantage. Understanding how moisture scavenger dosing affects shelf stability, how silane-filler surface chemistry governs mechanical properties, and how polymer backbone architecture determines fire behavior — this is formulation engineering, not catalog selection.
The engineering problem
Battery packs need perimeter seals that maintain sealing force through thousands of thermal cycles, pass UL94 V-0 without degrading elongation, control extractable ions to avoid electrochemical cell degradation, and dispense consistently through FIPG robots. No standard sealant meets this combined specification.
What we engineer differently
Low compression set backbone
Polymer selected for sustained sealing force, not just fresh-coupon tensile
Halogen-free FR fillers
ATH/MDH mineral systems achieving V-0 without destroying elongation
Ionic contamination control
Specific filler grades and catalyst packages minimizing extractable Cl⁻, Na⁺, SO₄²⁻
FIPG rheology tuning
Consistent bead profiles at production-line dispensing speeds and pressures
Target applications
Related products
The engineering problem
Rail interiors, industrial enclosures, and transport vehicles require fire-classified sealants (EN 45545-2, UL94). Simply adding FR fillers to standard MS polymer destroys elongation, adhesion, and extrusion characteristics — the product passes the burn test but fails every practical application requirement.
What we engineer differently
High-elongation backbone
Polymer grades with inherent elongation budget to spend on FR filler loading
Optimized PSD blends
ATH/MDH particle size distribution maintaining thixotropy at FR loading levels
Non-volatile plasticizer
Flexibility recovery without combustible components that undermine fire tests
Retained application properties
Gun-applicable, paintable, adhesive on mixed substrates at full FR loading
Target applications
Related products
The engineering problem
Transport body manufacturing and container repair need seam sealants applied by spray gun or pump — not hand-extruded from a cartridge. Making MS polymer sprayable requires a complete rheology reformulation: low enough viscosity for atomization, sufficient film build without sag, and rapid skin formation for downstream painting.
What we engineer differently
Shear-thinning rheology
Low viscosity under shear (spray), high viscosity at rest (no sag on vertical surfaces)
Modified binder strategy
Lower-viscosity polymer grades with adjusted filler systems for spray atomization
Accelerated skin formation
Paintable within minutes, not hours — matched to production line schedules
1K and 2K variants
1K for standard moisture cure; 2K for climate-controlled factories needing humidity-independent cure
Target applications
Related products
These platforms exist because they represent applications where MS polymer chemistry offers genuine performance advantages over incumbent technologies — but only if the formulation is purpose-engineered. A general-purpose MS sealant will fail in every one of these use cases. The value is in the formulation engineering, not the base chemistry.
Need a formulation engineered for your specific production environment?
Share your requirements and our formulation team will evaluate the technical feasibility.
Contact Our Team