Silicone Sealant Manufacturer & Factory | 17 Models, MOQ 1,000 pcs

PIROI is a silicone sealant manufacturer in Zhongshan, Guangdong, China — operating since 2017 on a 20,000 m² site with eight automated filling lines. We produce 17 models across four series and export to more than 30 countries. The plant is certified to ISO 9001:2015, and every batch is tested in-house before loading.

Our 17 Silicone Sealant Models

Seven models cover most export enquiries from buyers sourcing a silicone sealant manufacturer in China. The standard column is the specification each one was actually tested to — not a marketing claim.

All models ship in 300 mL cartridges or 590 mL sausages, 12 months shelf life from production date. Browse by series: Weatherproof & Structural · Sanitary & Home · Industrial & New Energy · Acetoxy. Or view all 17 models with the full specification table.

Industries We Manufacture For

Different joints need different chemistries. These are the applications our export customers specify most often:

• Curtain wall & facade — structural and weatherseal grades for glass, aluminium and terracotta
• Window & door fabrication — fast-cure grades for high-speed assembly lines
• Sanitary & bathroom — Grade 0 anti-mould tested to JC/T 885
• Natural stone & marble — non-staining grades for absorbent substrates
• Fire stopping — SR FV-0 classified penetration seals
• Solar PV — UV-stable grades for module frame bonding
• Appliance manufacturing — low-odour neutral cure for white goods
• Marine & container — salt-spray and vibration resistant grades

OEM & Private Label

Most of what we ship is made under someone else’s brand. The terms we will put in writing before you commit:

• MOQ — 1,000 pcs per model; mixed trial orders from 3,000 pcs across several models
• Stock — 500 pcs available from stock on the fastest-moving models
• Lead time — 15 to 25 days after order confirmation and deposit
• Your label — your artwork on cartridge, sausage and carton; colour matching to your chip
• Packaging — 300 mL cartridge, 590 mL sausage, or bulk drum for repackers
• Sample — supplied before bulk order so you can test adhesion and cure on your own substrate

Factory & Quality Control

The plant runs eight automated filling lines across 20,000 m², with an in-house laboratory on site. Every production batch is tested against five parameters before release:

• Extrusion rate (mL/min)
• Tack-free time (hours)
• Sag resistance (mm)
• Elastic recovery (%)
• Tensile modulus (MPa)

Retained samples are archived for 18 months per batch, so a claim can be checked against the actual material that shipped. As a silicone sealant factory exporting since 2017, we keep test data attached to the batch number rather than to the product page. See the factory · About PIROI

Certifications

Documentation you can verify, not certificates we bought for the website:

• ISO 9001:2015 — certificate No. 98926Q0018R053, issued by Guangdong Harmonious Certification (HCC), valid to 2029-01-25
• GB 16776-2025 — structural silicone sealant for building glazing
• GB/T 14683-2017 — neutral cure sealant, tested durability and adhesion
• JC/T 885-2016 Grade 0 — anti-mould, tested by Guangzhou Institute of Microbiology (CNAS L0823)
• GB/T 24267-2009 SR FV-0 (3.0 mm) 7.5P — fire classification, tested by China Building Material Test & Certification Group (CNAS L1417)
• RoHS & REACH — compliance reports available per consignment

Full documents are on the certifications page. For what each classification means and how the tests are run, see the FAQ.

How to Order

1. Send your requirement — model, quantity, packaging and destination port
2. Test a sample — we ship material so you can verify adhesion and cure on your substrate
3. Confirm spec and packaging — standard, colour, label artwork, carton
4. PI and deposit — proforma invoice issued with lead time and shipping terms
5. Production — 15 to 25 days, with batch testing before release
6. QC and loading — test report, packing list and certificate of origin per consignment

Frequently Asked Questions

What is your minimum order quantity?

1,000 pcs per model. Mixed trial orders start at 3,000 pcs across several models, and 500 pcs stock is available on the fastest-moving models.

How long does production take?

15 to 25 days after order confirmation and deposit. Sea freight transit is quoted separately by destination port.

Can you manufacture under our own brand?

Yes. We run OEM and private label on cartridge, sausage and carton. We need your artwork files and the quantity per model before production starts.

Do you supply samples before a bulk order?

Yes. We send material so you can test adhesion, colour and cure time on the substrate you will actually use.

Which export documents do you provide?

Test report, certificate of origin and packing list per consignment. If your country requires pre-shipment registration, confirm which party holds the product certificate before ordering.

How many cartridges fit in a 20ft container?

Loading quantity depends on cartridge or sausage format and carton size. Send your packaging preference and we will confirm the exact count per container.

Request a Quote

Send the model, monthly quantity and destination port. You will get a written quotation from our export team with lead time and packing terms — usually within one working day. If you are comparing several silicone sealant manufacturer quotes, ask each supplier for the batch test report and the classification code, not only a price per cartridge.

Prefer email? Use the contact page or browse all applications first.

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Product InterestSelect a product...PR-999 Structural SealantPR-333 Weatherproof SealantPR-666 Neutral WeatherproofPR-238 Fire-RatedPR-218 Anti-Mold SanitaryPR-602 Stone & MarblePR-338 Solar PV SealantPR-268 Appliance SealantPR-8700 Sliding DoorPR-618 Acetoxy SealantPR-638 Premium WeatherproofOEM / Custom Formulation

Estimated QuantitySelect quantity...Sample / Trial Order5,000 - 20,000 pcs20,000 - 50,000 pcs50,000 - 100,000 pcs100,000+ pcs

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