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Roof Waterproofing & Leak Repair Spray – Fast-Drying Transparent Self-Spraying Coating for Exterior Walls And Roofs

Leak Sealer Spray is a ready-to-use polyurethane waterproofing and leakage plugging spray, which is suitable for repairing hairline cracks on roofs, walls, floors, window sills, pipes, etc. It combines well with concrete, cement, PVC, aluminum alloys, etc. to form a dense waterproofing layer, effectively resisting water seepage caused by cracks and displacements of the substrate.
Availability:
Quantity:
  • 450ml

  • Saigao

Leak filler/repair Spray

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Product Feature

1. Instant waterproof film after drying

2. Strong adhesion on multiple surfaces

3. Flexible coating, not easy to crack

4. Weather resistant, anti-UV and anti-aging

5. Fast drying, low odor formula

Product Advantage

1. No complex construction tools required

2. Seal tiny cracks and gaps permanently

3. Works for roof, wall, pipe, window edge

4. Good penetration into small crevices

5. Long service life, reduce frequent rework

Scope of Application

1. Clean and dry the leaking area completely, remove dust and loose debris

2. Shake the spray can well before use

3. Spray evenly on the crack or leak point, keep 15-20cm distance

4. Apply 2-3 thin coats, wait each layer fully dry before next coating

5. Stop using and avoid water contact within 2 hours after final spraying

Brief Introduction

This waterproof leak repair spray is a fast-drying sealing aerosol designed for all kinds of leaking surfaces. It forms a tough, elastic waterproof membrane once cured, firmly bonding to concrete, metal, plastic, tiles and wall surfaces. The coating resists rain erosion, UV rays and temperature changes without cracking or peeling. It can quickly fill tiny cracks, pipe seams, window gaps and roof pinholes to block water penetration permanently. Simple to operate without complicated tools, it delivers long-lasting leak-proof protection for indoor and outdoor building maintenance.

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Core Features & Wholesale Competitive Advantages

Core Performance Features

The coating resists rain erosion, UV rays and temperature changes without cracking or peeling. It can quickly fill tiny cracks, pipe seams, window gaps and roof pinholes to block water penetration permanently. Simple to operate without complicated tools, it delivers long-lasting leak-proof protection for indoor and outdoor building maintenance.

Competitive Advantages for Bulk Purchasers

For bulk buyers in the automotive sector, our Waterproof leak repair spray offers unmatched value. We operate 21 fully automatic aerosol production lines with an annual capacity of 100 million aerosol products, guaranteeing stable supply even for large-volume orders. Our strict quality control system eliminates batch-to-batch color variation, a critical pain point for automotive refinishing projects. We also provide free sample evaluation to help you verify product performance before bulk ordering.

Product Specification Sheet

Parameter

Specification Details

Brand

SAIGAO

Product Type

Waterproof leak repair spray

Net Content

450ml

Base Formula

Resin

Standard Color

Black, gray,white

Recommended Spray Distance

20-30cm

Re-coat Interval

5 minutes

Storage

Sealed, cool and dry environment

Export Packaging

Standard sea-worthy carton packaging

Industrial Applications

1. Sealing leakage gaps of metal pipelines, valves and flanges

2. Waterproof protection for factory concrete floors, workshop roof cracks

3. Seam sealing of mechanical equipment housings and chassis

4. Anti-corrosion & waterproof coating for steel structural components

5. Leak repair for cooling water pipes and drainage troughs

6. Waterproof treatment for warehouse wall joints and window edges

7. Temporary leak blocking for machinery assembly seams during production

8. Waterproof isolation for outdoor electrical cabinet bases

Wholesale & Custom Solutions

We offer comprehensive wholesale and customization services for automotive commercial purchasers: free sample support for pre-order performance testing; exclusive private label and packaging design with a 1000-carton minimum order, and factory standard design starting at 200 cartons; 2-3 week production lead time for a 20ft container; full export documents including packing list, commercial invoice, CO/FORM E/FORM A, and BL, with shipping from Qingdao or Shanghai ports; strict quality guarantee that bulk goods fully match sample specifications; and a warm welcome to visit our 100-acre production facility at your convenience.

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Factory
FAQ

Q1. Can u send sample to us?

Yes, we are pleased to offer you a free sample for your evaluation.

Q2. Can you give us private design?

Yes, private design is available with a minimum order of 1000 cartons; factory design requires just 200 cartons.

Q3. Where is your port?

QINGDAO/SHANGHAI

Q4. What's your guarantee?

We proudly ensure that the quality of our goods matches the samples provided and exactly as described.

Q5. Can you provide us your client information?

Yes, we can share client information for you to verify our company's reputation and facilitate sample collection.

Q6. How many days you want to produce one 20'container?

It takes us approximately 2-3 weeks to complete a 20' container.

Q7. Can we visit factory?

Yes, we warmly welcome you to visit our facility at your convenience.

Q8. Documents?

The following documents are provided according to your requirements: Packing list, commercial invoice, CO / FORM E / FORM A, and BL.

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Shandong SAILGOAL New Materials Co., Ltd. is a high-tech enterprise integrating product research and development, production, sales and after service.

CONTACT US

 +86-13562996686
 sailgoalbaylee@sdsaigao.com
50 meters west of the intersection of Hengtong Road and Tuanjie Road, Tancheng County, Linyi City, Shandong Province

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