Plastic Sealant

Plastic sealant for bonding and sealing plastic surfaces.

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High-Strength Plastic Glue (50 ml/1.7 oz) - Long-Lasting Adhesive, Non-Yellowing Crack-Filling Seal, Automotive Bumper & Rearview Mirror Repair Bonding Solution

4.4

538 sold

-50%$7.90$15.80

Free shipping

DAP Alex Plus Interior-Exterior Acrylic Latex Caulk - White, 10.1oz, 7079818152 (Pack of 2)

$39.00

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MS Plastic Steel Sealant Mud (5oz Opaque) - 1pc + Free Smoothing Tool, High Bond Adhesive Tile Gap Caulk, 5x Strong Adhesion, Leak-Proof, Mold-Resistant, No Shrink-No Crack, Easy-to-Apply, Wet-Area Ready Home Improvement for Kitchen, Bathroom

4.5

1.0K sold

$32.99

Tile Grout Pen, Waterproof Quick Drying Floor & Wall Repair Pen, Multipurpose Surface Sealant for RV Plastic/Marble/Concrete/Tile, Liquid Waterproof Sealant

1 sold

$9.00

Free shipping

【Buy 1 Get 3 Free】 GUBUDA Heavy-Duty Oily Cyanoacrylate Super Glue Adhesive Sealant - Industrial-Grade Welding Strength, Waterproof, Heat-Resistant for Metal, Plastic Rapid Repair Solutions, Adhesive Sealant Super Glue

1 sold

Flash sale00:00:00

-52%$9.59$19.89

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Professional Grade Automotive Seam Sealer (2-Pack, 10.5 Oz) - High-Strength Waterproof Sealant for Auto Body Repair, Quick-Paintable Adhesive for Metal/Plastic

3 sold

-5%$19.95$21.00

Waterproof Fast-Drying Plastic Putty, Toilet Sealant, Bathroom Seals, General Household Plastic Putty, Quick Dry Waterproof Sealing Filler for RV, Tiles, Floors, Walls, Roofs, Sinks, Toilets

$2.49

Free shipping

4-Pack Self-Adhesive Waterproof PVC Caulk Strip Tape, Leak-Proof Seal Trim, Mold & Mildew Resistant Sealing Strip for Toilet Base, Bathtub, Kitchen Sink

3.9

237 sold

Limited time deal

$25.88

Free shipping

OCEA CBONE 70oz Liquid Transparent Waterproof Coating - Invisible Finish Concrete Sealant for Wood/Metal/Conc., Easy-to-Apply, Strong Adhesion Rubber Self-Sealing Agent (17.5oz Option Available)

4.3

54.3K sold

Flash sale00:00:00

$24.69

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212 MAIN Imperial Manufacturing KK0203 Resistant Flexible Waterproof Silicone Sealant, 10.3 Oz (0.75 lbs), 11.5x6.25x12 in, General Purpose Home Improvement Sealant for Roofing & Use on Metal, Glass, Wood, Plastic

$28.75

Free shipping

Hurry Harry Plastic Steel Putty Durable Waterproof Sealant - Waterproof Sealing Coating, Mold Proof, Stain Resistant, No Caulk Gun, 3-Step Application, Eco-Friendly, for Kitchen & Bathroom DIY Users, Daily Repair, -50°C to 150°C

31 sold

$15.90

Free shipping

212 MAIN 1-Part Acrylic Elastomeric Caulk - 10.1 oz White Stretch Sealant, Strong Adhesive, Waterproof, UV Resistant, Paintable, Silicone Seals Compatible, Non-Yellowing for Interior/Exterior Building Construction Joints (Home Improvement Supply), Waterpr

4.0

1 sold

$21.75

Free shipping

DAP 7079818707 10.1 oz High Performance Extreme Stretch Elastomeric Sealant-Adhesive, Redwood Acrylic Sealer - Waterproof, Crack-Resistant, Low Odor, Easy Cleaning Home Improvement Supply for Windows/Doors, Flashing, Gutters

$18.53

Free shipping

True Value 212 MAIN Waterproof All-Purpose Acrylic Latex Silicone Caulk - 10.1 oz Adhesive (0.8 lbs), Home Improvement Building Supplies for All-Seasons Repair, Sealing Gaps (Model 220504, Building Supplies Repairs)

$22.01

Free shipping

212 MAIN PERMTX-LOCKT 81173 Black RTV Silicone Adhesive Sealant, 12.9 Oz., Low Odor, Waterproof, Flexible, Strong Adhesion for Repair Seals, Bonds Fabric/Glass-Metal/Plastics, Indoor Home Improvement Mends, Weather & Vibration Resistant

$31.22

Free shipping

20-Pcs Eco-Friendly Sticky Sealant Clay, Bond Seal Wall Hole Filler for Irregular Shapes, Quick-Curing No-Drilling Easy-Apply Adhesive, Strong Adhesion Waterproof Oil-Resistant Home Improvement Pack

67 sold

Limited time deal

$7.99

Free shipping

Hurry Harry Plastic Steel Putty - Anti Leak Waterproof Sealant, Mold Proof, Stain Resistant, Eco-Friendly, for DIY Users' Bathroom Seals, -50°C~+150°C, Kitchen Window Gap Applications

4.4

386 sold

-53%$14.95$31.80

SOPAMI 10/20PCS Eco-Friendly Sticky Sealant Clay, Quick Curing & Strong Adhesion, Waterproof Oil-Resistant Pest Control Sealant for Air Conditioner Holes Wall Cracks Pipes

4.4

70.5K sold

Flash sale00:00:00

-30%$13.98$19.99

SOPAMI 10/20PCS Eco-Friendly Sealant Clay Sticky Putty Quick Dry Waterproof Fireproof Anti-Insect Windproof Strong Plasticity for Air Conditioner Pipe Wall Hole Sealing

4.3

50 sold

Limited time deal

-50%$9.99$19.99

Ceramic Repair Paste, Porcelain Restoration Paste, Waterproof, Simple Operation, For Kitchen Tile, Bathroom Pottery, Metal, Glass, Plastic, Waterproof Sealant

$7.80

Free shipping

Invisible Waterproofing Agent - Transparent Repair Adhesive, Leak-Proof, Suitable for Roofs, Walls, Bath Areas, 3.53 oz, Roof/Walls/Bath

$14.39

Free shipping

Industrial-Grade Cold Weld Sealant Putty, Anti-Leak Adhesion Super Glue for Emergency Repairs on Stainless Steel Fuel Tanks, Cast Iron Radiators

4.3

7.0K sold

Flash sale00:00:00

-50%$16.89$33.77

70oz Large Capacity Upgraded Polyurethane Invisible Waterproof Sealant Coating with Brush+Gloves - Invisible Cure, Leak Repairs for Roof, Bathroom Tile/Wood/Stone Surfaces (Tools & Hardware, Adhesives & Sealers)

3.0

159 sold

Flash sale00:00:00

-43%$37.17$65.00

Free shipping

12-Piece Waterproof Caulk Repair Kit for Bathrooms &Kitchens - White Seam Filling Sealant, Multi-FunctionScraper, 5 Finishing Heads, Smoothing Ball, Sealant TubeSqueezer, Masking Tape & Nitrile Gloves - Easy Gap Repairfor Bathtubs, Sinks

4.7

112 sold

$8.28

Free shipping

Liquid Rubber Waterproof Coating, High Elastic Leak Sealant for Roof, RV, Gutter & Pipe Repair (1.1 lbs / Multi-Pack)

3.6

1.2K sold

-50%$19.49$38.97

Free shipping

9900 Neutral-Cure Silicone Sealant, 27 oz Heavy-Duty Waterproof Construction Adhesive Caulk for Kitchen, Bathroom, Windows, Doors, Pipes and Exterior Gaps, Indoor Outdoor Weatherproof Sealant

18 sold

-58%$16.80$39.90

Free shipping

10/20PCS Eco-Friendly Sticky Sealant Clay, Quick-Curing Strong-Adhesion Adhesive Caulk, Waterproof Oil-Resistant Pest Control for Air Conditioner Holes, Wall Cracks

4.4

6.9K sold

-46%$12.99$23.98

Free shipping

70oz Large Capacity Upgraded Transparent Waterproof Sealant Coating - No Wall Drilling, Long-Lasting Seal, for Roof, Bathroom, Basement, Brick, Stone, Tile/Wood Surfaces (Tools & Hardware, Adhesives Tapes & Sealers, Waterproofers, Indoor/Outdoor Use)

4.2

4.9K sold

-53%$32.90$70.00

Free shipping

Mr Seal Durable Waterproof Sealant Paint - 35.2oz/17.6oz Brush-Applicable Gel Coating, Heat/Cold Resistant, Anti Leak Adhesive for Gutter, Pipe, Brick Walls, Ceramics, Indoor/Outdoor (Tools & Hardware, Adhesives Tapes & Sealers)

4.3

1.2K sold

Limited time deal00:00:00

-19%$16.89$20.79

Free shipping

Liquid Rubber Waterproof Sealant Glue, Neutral Gray (1.1 lbs to 11 lbs / 0.5kg-5kg), Ready to Use Leak Repair Flexible Coating for Roofs, Concrete, Basements & Gutters

4.3

1.4K sold

Flash sale00:00:00

-20%$37.35$46.70

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Introduction

Plastic sealant creates a flexible, waterproof bond on PVC, acrylic, polycarbonate and other plastics. Choose the right formula for indoor or outdoor use, check cure time before handling, and verify compatibility with the specific plastic type you are working with.

Substrate compatibility for rigid or flexible plastics
Waterproofing performance under temperature swings
Application method: caulk gun, squeeze tube or aerosol

Find the plastic sealant that matches your project needs.

Plastic Sealant

Plastic sealant for bonding and sealing plastic surfaces.

High-Strength Plastic Glue (50 ml/1.7 oz) - Long-Lasting Adhesive, Non-Yellowing Crack-Filling Seal, Automotive Bumper & Rearview Mirror Repair Bonding Solution

DAP Alex Plus Interior-Exterior Acrylic Latex Caulk - White, 10.1oz, 7079818152 (Pack of 2)

MS Plastic Steel Sealant Mud (5oz Opaque) - 1pc + Free Smoothing Tool, High Bond Adhesive Tile Gap Caulk, 5x Strong Adhesion, Leak-Proof, Mold-Resistant, No Shrink-No Crack, Easy-to-Apply, Wet-Area Ready Home Improvement for Kitchen, Bathroom

Tile Grout Pen, Waterproof Quick Drying Floor & Wall Repair Pen, Multipurpose Surface Sealant for RV Plastic/Marble/Concrete/Tile, Liquid Waterproof Sealant

【Buy 1 Get 3 Free】 GUBUDA Heavy-Duty Oily Cyanoacrylate Super Glue Adhesive Sealant - Industrial-Grade Welding Strength, Waterproof, Heat-Resistant for Metal, Plastic Rapid Repair Solutions, Adhesive Sealant Super Glue

Professional Grade Automotive Seam Sealer (2-Pack, 10.5 Oz) - High-Strength Waterproof Sealant for Auto Body Repair, Quick-Paintable Adhesive for Metal/Plastic

Waterproof Fast-Drying Plastic Putty, Toilet Sealant, Bathroom Seals, General Household Plastic Putty, Quick Dry Waterproof Sealing Filler for RV, Tiles, Floors, Walls, Roofs, Sinks, Toilets

4-Pack Self-Adhesive Waterproof PVC Caulk Strip Tape, Leak-Proof Seal Trim, Mold & Mildew Resistant Sealing Strip for Toilet Base, Bathtub, Kitchen Sink

OCEA CBONE 70oz Liquid Transparent Waterproof Coating - Invisible Finish Concrete Sealant for Wood/Metal/Conc., Easy-to-Apply, Strong Adhesion Rubber Self-Sealing Agent (17.5oz Option Available)

212 MAIN Imperial Manufacturing KK0203 Resistant Flexible Waterproof Silicone Sealant, 10.3 Oz (0.75 lbs), 11.5x6.25x12 in, General Purpose Home Improvement Sealant for Roofing & Use on Metal, Glass, Wood, Plastic

Hurry Harry Plastic Steel Putty Durable Waterproof Sealant - Waterproof Sealing Coating, Mold Proof, Stain Resistant, No Caulk Gun, 3-Step Application, Eco-Friendly, for Kitchen & Bathroom DIY Users, Daily Repair, -50°C to 150°C

212 MAIN 1-Part Acrylic Elastomeric Caulk - 10.1 oz White Stretch Sealant, Strong Adhesive, Waterproof, UV Resistant, Paintable, Silicone Seals Compatible, Non-Yellowing for Interior/Exterior Building Construction Joints (Home Improvement Supply), Waterpr

DAP 7079818707 10.1 oz High Performance Extreme Stretch Elastomeric Sealant-Adhesive, Redwood Acrylic Sealer - Waterproof, Crack-Resistant, Low Odor, Easy Cleaning Home Improvement Supply for Windows/Doors, Flashing, Gutters

True Value 212 MAIN Waterproof All-Purpose Acrylic Latex Silicone Caulk - 10.1 oz Adhesive (0.8 lbs), Home Improvement Building Supplies for All-Seasons Repair, Sealing Gaps (Model 220504, Building Supplies Repairs)

212 MAIN PERMTX-LOCKT 81173 Black RTV Silicone Adhesive Sealant, 12.9 Oz., Low Odor, Waterproof, Flexible, Strong Adhesion for Repair Seals, Bonds Fabric/Glass-Metal/Plastics, Indoor Home Improvement Mends, Weather & Vibration Resistant

20-Pcs Eco-Friendly Sticky Sealant Clay, Bond Seal Wall Hole Filler for Irregular Shapes, Quick-Curing No-Drilling Easy-Apply Adhesive, Strong Adhesion Waterproof Oil-Resistant Home Improvement Pack

Hurry Harry Plastic Steel Putty - Anti Leak Waterproof Sealant, Mold Proof, Stain Resistant, Eco-Friendly, for DIY Users' Bathroom Seals, -50°C~+150°C, Kitchen Window Gap Applications

SOPAMI 10/20PCS Eco-Friendly Sticky Sealant Clay, Quick Curing & Strong Adhesion, Waterproof Oil-Resistant Pest Control Sealant for Air Conditioner Holes Wall Cracks Pipes

SOPAMI 10/20PCS Eco-Friendly Sealant Clay Sticky Putty Quick Dry Waterproof Fireproof Anti-Insect Windproof Strong Plasticity for Air Conditioner Pipe Wall Hole Sealing

Ceramic Repair Paste, Porcelain Restoration Paste, Waterproof, Simple Operation, For Kitchen Tile, Bathroom Pottery, Metal, Glass, Plastic, Waterproof Sealant

Invisible Waterproofing Agent - Transparent Repair Adhesive, Leak-Proof, Suitable for Roofs, Walls, Bath Areas, 3.53 oz, Roof/Walls/Bath

Industrial-Grade Cold Weld Sealant Putty, Anti-Leak Adhesion Super Glue for Emergency Repairs on Stainless Steel Fuel Tanks, Cast Iron Radiators

70oz Large Capacity Upgraded Polyurethane Invisible Waterproof Sealant Coating with Brush+Gloves - Invisible Cure, Leak Repairs for Roof, Bathroom Tile/Wood/Stone Surfaces (Tools & Hardware, Adhesives & Sealers)

12-Piece Waterproof Caulk Repair Kit for Bathrooms &Kitchens - White Seam Filling Sealant, Multi-FunctionScraper, 5 Finishing Heads, Smoothing Ball, Sealant TubeSqueezer, Masking Tape & Nitrile Gloves - Easy Gap Repairfor Bathtubs, Sinks

Liquid Rubber Waterproof Coating, High Elastic Leak Sealant for Roof, RV, Gutter & Pipe Repair (1.1 lbs / Multi-Pack)

9900 Neutral-Cure Silicone Sealant, 27 oz Heavy-Duty Waterproof Construction Adhesive Caulk for Kitchen, Bathroom, Windows, Doors, Pipes and Exterior Gaps, Indoor Outdoor Weatherproof Sealant

10/20PCS Eco-Friendly Sticky Sealant Clay, Quick-Curing Strong-Adhesion Adhesive Caulk, Waterproof Oil-Resistant Pest Control for Air Conditioner Holes, Wall Cracks

70oz Large Capacity Upgraded Transparent Waterproof Sealant Coating - No Wall Drilling, Long-Lasting Seal, for Roof, Bathroom, Basement, Brick, Stone, Tile/Wood Surfaces (Tools & Hardware, Adhesives Tapes & Sealers, Waterproofers, Indoor/Outdoor Use)

Mr Seal Durable Waterproof Sealant Paint - 35.2oz/17.6oz Brush-Applicable Gel Coating, Heat/Cold Resistant, Anti Leak Adhesive for Gutter, Pipe, Brick Walls, Ceramics, Indoor/Outdoor (Tools & Hardware, Adhesives Tapes & Sealers)

Liquid Rubber Waterproof Sealant Glue, Neutral Gray (1.1 lbs to 11 lbs / 0.5kg-5kg), Ready to Use Leak Repair Flexible Coating for Roofs, Concrete, Basements & Gutters

Introduction

FAQs

Most formulas skin over in 30 minutes and reach full strength in 24 hours. Follow the label for temperature and humidity requirements.

Yes, once fully cured many sealants accept latex or acrylic paint. Lightly sand glossy surfaces for better adhesion.

Quality formulas resist water immersion and outdoor weathering, but confirm the product states suitability for submerged or high-moisture areas.

Standard sealants often fail on these low-energy plastics. Look for products labeled for PE/PP or use a primer first.

Seal the tube tightly, store upright in a cool, dry place, and use within the printed shelf life for best results.