Low Viscosity 100% Solid Content Polysilazane Resin STD-8804R

Product Overview

STD8804R is a side-methyl 100% solid-content polysilazane resin capable of moisture or thermal curing. The cured resin exhibits exceptional adhesion to challenging substrates including metals, glass, ceramics, plastics, and graphite. With outstanding high-temperature resistance, hardness, chemical/water/stain resistance, and weatherproof properties, it is widely used for surface treatment and protection in marine, chemical pipelines, nuclear facilities, industrial components, electronics, and new energy battery parts. For ultra-high-temperature formulations, substrates require heating to ≥450℃ to initiate ceramic conversion, achieving peak operating temperatures exceeding 800℃.
 

Key Features & Specifications

Key Features

High hardness (up to 6H)

Superior adhesion to most substrates

High-temperature resistance (up to 800℃)

Ultra-thin coating (0.5-20μm)

Excellent weather/chemical resistance

Extremely low viscosity (<100 mPa·s@20℃)

Solvent-free, fluorine-free

Ambient or thermal curing
 

Chemical Properties
 

Film Thickness (μm)	Application	Tack - Free (min)	Hardness (ASTM D3363)	Adhesion (ASTM D3359)
7 - 15	Troweling	25 - 30	6H	5B
25 - 35	Brushing	25 - 30	7H	5B
24 - 37	Spraying	25 - 30	7H	5B

 

Application Matrix
 

Coatings	Adhesives
Pre-ceramic polymers	Polymer Matrix Composites (PMC)
Non-flammable composites	Organic/Inorganic hybrids
Casting elastomers	Rigid castings

 

*Typical properties, not specifications.
 

Curing Performance
 

Pre-Curing Properties	Value
Appearance	Colorless transparent liquid
Post-Cure Density	1.6-2.0 g/cm³
Viscosity @20℃	50-200 cPs
Film Thickness	0.5-20 μm
Curing Methods

Typical Water-Resistant Curing Conditions

• 23℃/50% RH: 1-3 days

• 100℃: 2 hours

• 200-300℃: 10-30 minutes |

Curing Behavior

Performance depends on ambient temperature/humidity.

 

Film Thickness (μm)	Application	Tack-Free (min)	Hardness (ASTM D3363)	Adhesion (ASTM D3359)
7-15	Troweling	25-30	6H	5B
25-35	Brushing	25-30	7H	5B
24-37	Spraying	25-30	7H	5B

Post-Curing Properties (30℃/55% RH on Q-panel steel)

 

Property	Result
Tinplate Adhesion	5B
Wafer Adhesion	5B
Stainless Steel Adhesion	5B
Aluminum Alloy Adhesion	5B
Glass Adhesion	5B
Ceramic Adhesion	5B
Pencil Hardness	5-7H
High-Temp Resistance	800℃
Salt Spray Resistance	2.400hrs passed
QUV Aging	3.000hrs passed

 

Typical Water-Resistant Curing Conditions

• 23℃/50% RH: 24-72hrs

• 100℃: 2hrs

• 130-180℃: 1hr

• 240℃: Minutes

• Full cure at RT: 1-3 days

Parameters vary with formulation and application conditions.
 

Recommended Applications

Architectural surfaces

Metal anti-corrosion

Transportation

Plastic packaging waterproofing

High-temperature metal coatings

Surface hardening coatings
 

Additional Notes

Handling Instructions

• For trained professionals only

• Compatible with aprotic solvents (alkanes, aromatics, ethers, ketones, esters)

• Contains physically/chemically bonded ammonia – handle with caution

• Reacts vigorously with water, alcohols, acids, bases

• Extend shelf life via dehumidification after opening

• Typical dosage: 2-90% in formulations

Cleaning Protocol

• Clean tools immediately with acetone/mineral spirits

• Follow with soap water rinse

• Cured material cannot be removed by solvents

Storage & Disposal

• Unopened: 6 months@25℃ / 12 months@0-(-5)℃

• Dispose via authorized facilities

• Avoid mixing with protic substances

Safety Compliance

• Always follow MSDS

• PPE Requirements:

Butyl rubber gloves

Safety goggles

A2B2E2K2Hg/P3 respirator

Store <25℃ in dry area

Ventilate periodically to release ammonia

Pre-Application

• Ready-to-use without dilution

• Avoid prolonged exposure during transfer

• Dedicated equipment for application

Spraying Parameters

Substrate Preparation

Degrease & rinse

Dust removal with air gun

Dehumidify at 60-70℃ if RH >70%

Spray Booth

• Maintain 20-30℃ / 30-60% RH

• Install airlocks & exhaust systems

• Monitor solvent concentration

Spray Gun

• Auto-air/electrostatic sprayers

• Follow manufacturer settings

• Avoid over-spraying (adjust pressure)

• Strictly avoid water/ethanol contact