PR-304 · Specialty

Stainless Steel Silicone Sealant

Specialized sealant for stainless steel surfaces. Non-corrosive formula, excellent adhesion, ideal for stainless steel kitchen and sanitary applications.

Product Standard	General Purpose
Cure System	Neutral Cure
Packaging	300mL cartridge
Shelf Life	12 months from production date
Transport	Non-hazardous goods
Storage	Dry, ventilated, cool place

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Technical Data

Appearance	Smooth paste
Density	Available on request
Skin Time	Available on request
Tack Free Time	Available on request

Cure Depth (24h)	Available on request
Shore A Hardness	Available on request
Tensile Strength	Available on request
Elongation at Break	Available on request

Typical values obtained under laboratory conditions (23°C / 50% RH) and not intended for specification purposes. Tested to General Purpose. Download the full test report on request.

Product Characteristics

Non-corrosive to stainless steel surfaces
Excellent adhesion to stainless steel, metal and glass
Resistant to discoloration on metal
Good weather and aging resistance
Neutral cure, safe for metal substrates
Transport as non-hazardous goods

Applications

Stainless steel kitchen sink sealing
Stainless steel sanitary ware
Metal countertop and backsplash
Stainless steel decoration and fixtures

Limitations

Not for structural bonding
Not for oily or exuding surfaces
Not for continuous immersion
Apply at 4°C to 40°C

Application Scope

Where PR-304 Is Used

PR-304 Stainless Steel Silicone Sealant — silicone sealant application by PIROI

Stainless Steel & Metal Fabrication

Silicone sealant for stainless steel and metal fabrication — primerless adhesion, non-corrosive, no weld-line or coating attack.

Ordering Information

MOQ, Lead Time & Private Label — PR-304

MOQ OEM & private label from 1,000 pcs per model

Trial Order Mixed-model trial orders from 3,000 pcs total; stock items from 500 pcs

Lead Time Typically 15–25 days after artwork and sample approval

Packaging 300 mL cartridge

Shelf Life 12 months from production date

Private Label Custom cartridge artwork and colour matching supported

Not sure how many cartridges your project needs? Use the free joint width & coverage calculator →

Common Questions

FAQs — PR-304

What is PR-304 used for?

Stainless steel kitchen sink sealing, stainless steel sanitary ware, metal countertop and backsplash joints, and stainless steel decoration and fixtures.

Why does stainless steel need a special sealant?

PR-304 uses a non-corrosive formula. Acid cure sealants release acetic acid while curing, which can corrode stainless steel surfaces and leave marks that are difficult to remove.

Is it suitable for continuous water immersion?

No. It handles normal kitchen and sanitary splashing but is not intended for permanently submerged joints.

Can it be used on other metals as well?

It is formulated for stainless steel but generally adheres to other clean metal surfaces. Confirm adhesion on the actual substrate and finish before full application — this model does not currently have a published test report.

What is the MOQ and lead time?

Standard OEM and private label MOQ is 1,000 pcs per model, with mixed-model trial orders from 3,000 pcs total and stock items from 500 pcs. Typical lead time is 15–25 days after artwork and sample approval.