Product Overview
Chemistry and film properties mirror SILZ-150: hydrolysis and oxidation of the Si-NH-Si backbone drive cure, the same groups bond covalently to substrate hydroxyls, and an optional catalyst densifies the Si-H crosslink network. What changes is kinetics — SILZ-150K reaches handling strength markedly faster, so coated parts move to the next station sooner.
Like the rest of the series, SILZ-150K doubles as a formulation intermediate: an amine-type curing agent, or a heat- and weather-resistance modifier for hydroxyl-functional phenolic, epoxy, alkyd and acrylic resins.
Key Benefits
Rapid room-temperature cure
Fast handling strength at ambient conditions shortens line takt and rack time — no oven investment, no thermal stress on substrates.
Same film quality as SILZ-150
≥6H hardness, >500 h neutral salt spray, non-yellowing transparency and Grade 0 adhesion are retained at the faster cure speed.
High solids, low waste
>98% solid content means nearly everything you spray stays on the part — 8–15 m²/kg theoretical coverage from a solvent-free resin.
Insulation-grade electricals
Dielectric strength ≥10⁵ V/mm and volume resistivity ≥10¹² Ω·m carry over from the series' insulating pedigree.
Typical Applications
- Fast-turnaround insulating coatings
- Wear-resistant coatings
- Flame-retardant coatings
- Hydrophobic & weather-resistant coating systems
- Amine curing agent
- Resin modifier
Solution guides: Electrical Insulation & Electronics ProtectionTransparent, Hard & Easy-Clean Surface ProtectionResin, Rubber & Composite Modification
Technical Data
| Test Item | Performance Indicator | Test Method |
|---|---|---|
| Color & Appearance | Pale yellow to colorless transparent liquid | GB/T 1721-1979 |
| Solid Content (120 ± 2°C) | >98% | GB/T 1725-2007 |
| Density | 0.93 ± 0.1 g/mL | GB/T 6750-2007 |
| Pencil Hardness | ≥6H | GB/T 6739-2006 |
| Adhesion | Grade 0 | GB/T 9286-1998 |
| Neutral Salt Spray Resistance | >500 h | GB/T 10125-2021 |
| Water Contact Angle | >100° | GB/T 26490-2011 |
| Artificial Aging Resistance | 30 d: no rust, powdering, cracking or discoloration | GB/T 1865-2009 |
| Dielectric Strength | ≥10⁵ V/mm | ASTM D149 |
| Volume Resistivity | ≥10¹² Ω·m | GB/T 35856-2018 |
| Theoretical Coverage | 8–15 m²/kg |
| Dry Film Thickness | 20–70 µm |
| Working Time (after opening) | 4 h |
| Curing Temperature | Room temperature (rapid cure) |
| Curing Time (full dry) | >18 h |
| Recommended Service Temperature | -30 to 350 °C |
| Maximum Instantaneous Temperature | 500 °C |
| Thinner | Aromatics, esters, ethers |
| Flash Point | <22 °C (solvent) |
| Storage Temperature / Shelf Life | 5–35 °C · 12 months unopened |
Values from the SILZ-150K technical data sheet. Complete TDS with test conditions available on request.
Curing & Processing Guidance
Prepare surfaces exactly as for SILZ-150: grind or sandblast to Sa 2.5 (minimum St 3, no mill scale), degrease and dry. Filter the resin through a 120-mesh sieve if needed and spray with a 1.0 mm nozzle.
Keep dry film at 20–70 µm in one coat. The faster kinetics tighten the practical spray window — plan batch sizes so opened material is used within 4 hours, and clean equipment promptly after each run.
Cure proceeds at room temperature with no external trigger; full properties develop after 18 hours. Where line speed demands even faster turnover, mild warm air accelerates cure — ask our engineers for a schedule matched to your takt.
Substrate Compatibility
Carbon steel, stainless steel, cast iron, aluminum alloy, titanium alloy, high-temperature alloy steel, glass-ceramics, ceramics and cement. Formulation adjustments per substrate and thermal-cycling conditions are available — describe your line and part, and we will confirm the setup.
SILZ-150K — Purchasing & Application FAQ
How much faster is SILZ-150K than SILZ-150?
SILZ-150K reaches handling strength significantly sooner at the same ambient conditions, which is what matters for line takt. Exact times depend on temperature, humidity and film thickness — we provide comparative cure curves for your conditions on request.
Is the cured film any different from SILZ-150?
No. Hardness (≥6H), salt spray (>500 h), adhesion (Grade 0), electrical values and outdoor performance are equivalent — the difference is cure kinetics, not film chemistry.
Can I run SILZ-150K on a heated line to go even faster?
Yes. Mild warm-air acceleration is common on automated lines. Send us your target takt time and oven capability and we will recommend a cure schedule.
TDS / SDS / COA & Samples
Technical Data Sheet, Safety Data Sheet and batch Certificate of Analysis are available for SILZ-150K, and a COA accompanies every shipment. Evaluation samples ship with starting-parameter guidance.
Packaging: Available in 1 kg, 2 kg, 5 kg and 25 kg pails. Shelf life 12 months in the original unopened container at 5–35 °C.
SDS & batch COA on request · Reply within 1 business day.