Free UK delivery on orders above £75
Use CART5 for 5% off orders over £100
Order by 12:00 for same day dispatch
MHP PU Adhesive Seam Sealer – 300ml Polyurethane Automotive Sealant
Price range: £4.95 through £49.20
MHP Seam Sealer delivers reliable, versatile sealing and bonding for automotive repairs. This professional-grade polyurethane adhesive ensures long-lasting results on multiple surfaces.
- Seal body panels, trims, and seams with lasting strength.
- Bond metal, plastic, glass, and more securely.
- Protect against leaks with a weather-resistant finish.
- Apply easily using a standard caulking gun.
- Finish with a paintable, smooth surface.
Shop now to achieve strong, professional automotive repairs with MHP Seam Sealer.
| Quantity | Discount | Discounted price |
| 1 - 3 | - | - |
| 4 - 6 | 5% | - |
| 7 - 11 | 8% | - |
| 12 - 36 | 10% | - |
Description
MHP Polyurethane Seam Sealer & Adhesive 310ml – Automotive Bodywork Sealant
MHP Polyurethane Seam Sealer & Adhesive 310ml is a professional automotive sealant developed for sealing and bonding bodywork seams, panels, trims and compatible vehicle components. Its polyurethane formulation provides strong adhesion to suitable metals, plastics, glass, wood and other substrates, creating a flexible, weather-resistant seal for automotive repair, restoration and maintenance applications.
Designed for convenient application using a standard cartridge gun, MHP Seam Sealer forms a skin in approximately 30–60 minutes and produces a durable, paintable finish. Its versatile sealing and bonding properties make it suitable for automotive bodyshops, vehicle restoration specialists, workshops and general maintenance applications where a flexible polyurethane sealant is required.
Professional Polyurethane Seam Sealer for Automotive Bodywork & Repairs
MHP Seam Sealer is a versatile polyurethane adhesive and sealant designed for professional automotive sealing, bonding and repair applications.
Its polyurethane-based formulation provides adhesion to a range of compatible substrates, making it suitable for sealing vehicle bodywork seams, joints, trims and other non-structural components.
Once applied, the sealant forms a flexible barrier that helps prevent moisture and environmental contamination from entering suitably prepared joints and seams.
The flexible cured material accommodates normal movement and vibration in appropriate applications, helping maintain a continuous seal.
MHP Seam Sealer is also paintable with compatible automotive coating systems, allowing repaired seams and joints to be finished to match surrounding bodywork.
Supplied in a convenient 310ml cartridge, the product can be applied using a suitable standard cartridge gun for controlled bead placement.
Whether used during vehicle restoration, body panel repairs or general automotive maintenance, MHP Seam Sealer provides a practical solution for professional sealing and compatible non-structural bonding applications.
Key Features
- Professional Polyurethane Formula – Designed for automotive sealing and compatible bonding applications.
- Strong Multi-Surface Adhesion – Bonds to suitably prepared metals, plastics, glass, wood and other compatible substrates.
- Flexible Sealing Performance – Accommodates normal movement and vibration in suitable joints.
- Weather-Resistant Seal – Helps protect properly sealed joints against moisture and environmental exposure.
- Paintable Finish – Compatible with suitable automotive paint systems following the manufacturer’s recommendations.
- 30–60 Minute Skin Formation – Forms a surface skin under the stated application conditions.
- Convenient Cartridge Application – Suitable for use with a standard 310ml cartridge gun.
- Automotive Bodywork Applications – Ideal for seams, panel joints, trims and suitable vehicle components.
- Professional Repair Finish – Allows controlled application for neat, consistent sealing beads.
- 310ml Cartridge – Convenient size for workshop, bodyshop and restoration applications.
Technical Specifications
- 310ml
Cartridge Size - PU
Polyurethane Formula - 30–60
Skin Time (Minutes) - Paintable
Cured Finish
| Specification | Details |
|---|---|
| Brand | MHP |
| Product Name | Polyurethane Seam Sealer & Adhesive |
| Product Type | Automotive Seam Sealer & Adhesive |
| Container Size | 310ml |
| Container Type | Cartridge |
| Chemical Base | Polyurethane |
| Application Method | Manual or Compatible Powered Cartridge Gun |
| Skin Formation Time | Approximately 30–60 Minutes |
| Stated Cure Time | Approximately 24 Hours Under Specified Conditions |
| Reference Conditions | 23°C and 50% Relative Humidity |
| Cured Properties | Flexible |
| Paintable | Yes, with Compatible Coating Systems |
| Weather Resistance | Weather-Resistant Seal |
| Suitable Substrates | Compatible Metals, Plastics, Glass & Wood |
| Primary Applications | Automotive Bodywork, Panel Seams, Trims & Repairs |
| Condition | New |
Curing Information: The supplied product description states skin formation in approximately 30–60 minutes and full curing within 24 hours at 23°C and 50% relative humidity. Actual curing performance depends on bead dimensions, temperature, humidity and substrate conditions. Thicker applications may require longer curing times.
Important: The product’s exact colour, curing rate by depth, service temperature range and mechanical performance specifications should be confirmed against the manufacturer’s current technical data sheet.
Why Choose MHP Polyurethane Seam Sealer?
01 – Strong Sealing & Adhesion
Provides reliable adhesion to compatible automotive substrates, helping create durable seals across suitable bodywork seams and joints.
02 – Flexible Weather-Resistant Finish
The cured polyurethane material remains flexible, helping accommodate normal movement while protecting properly sealed joints against moisture.
03 – Professional Paintable Results
Suitable for finishing with compatible automotive paint systems, helping repaired seams blend into surrounding vehicle bodywork.
04 – Convenient Cartridge Application
The 310ml cartridge is designed for controlled application using a compatible sealant gun, making it practical for bodyshops and repair workshops.
Typical Applications
- Automotive body panel seam sealing.
- Vehicle restoration and bodywork repairs.
- Sealing suitable metal panel joints.
- Non-structural automotive trim bonding.
- Sealing compatible vehicle bodywork gaps.
- General automotive workshop maintenance.
- Repairing suitable bodywork seams and joints.
- Sealing compatible metal, plastic and glass interfaces.
- Professional bodyshop and refinishing applications.
Application Suitability: MHP Seam Sealer is intended for compatible sealing and non-structural bonding applications. Always check substrate compatibility and manufacturer requirements before use.
Important: Do not use as a replacement for manufacturer-specified structural body adhesives, windscreen bonding systems or safety-critical bonding products without appropriate approval.
Polyurethane Technology for Flexible Automotive Sealing
Polyurethane sealants are commonly used in automotive bodywork applications where a combination of adhesion, flexibility and sealing performance is required.
MHP Seam Sealer is formulated to create a continuous bond and seal across suitably prepared joints and compatible surfaces.
Unlike rigid fillers, a flexible polyurethane sealant can accommodate normal movement and vibration in appropriate applications.
This makes it useful for vehicle bodywork seams, panel joints and suitable automotive maintenance tasks where flexibility is important.
Important: The durability and performance of the finished seal depend on surface preparation, joint design, environmental exposure and correct application. No specific service life guarantee is provided.
Multi-Surface Adhesion for Automotive & Workshop Applications
MHP Polyurethane Seam Sealer is designed to adhere to a range of compatible materials, including suitable metals, plastics, glass and wood.
This versatility makes it useful for different automotive sealing and maintenance tasks where a flexible adhesive sealant is required.
Correct surface preparation is essential for achieving reliable adhesion.
Surfaces should be clean, dry and free from oil, grease, dust, loose coatings and other contaminants before application.
Important: Not all plastics, coated metals or painted surfaces are compatible with every polyurethane sealant. Test adhesion where necessary and follow the manufacturer’s substrate preparation guidance.
Paintable Finish for Professional Bodywork Repairs
MHP Seam Sealer is described as paintable, making it suitable for automotive repair applications where the finished seal needs to integrate with surrounding bodywork.
Once sufficiently cured and prepared according to the manufacturer’s recommendations, the sealant can be finished using compatible automotive coating systems.
This makes it useful for restoration work, body panel repairs and other suitable applications requiring a neat, professional appearance.
Important: Paint compatibility, preparation requirements and the earliest suitable overpainting time depend on the coating system and sealant curing conditions. Always carry out a compatibility test where necessary.
How to Apply MHP Polyurethane Seam Sealer
For best results, follow the manufacturer’s current application instructions and ensure the working area is suitable for polyurethane sealant application.
- Prepare the Surface: Ensure the application area is clean, dry and free from dust, grease, oil, loose paint and other contamination.
- Check Compatibility: Confirm the substrate and intended application are suitable for polyurethane seam sealing.
- Prepare the Cartridge: Open the 310ml cartridge according to the manufacturer’s instructions and fit the application nozzle.
- Load the Cartridge Gun: Insert the cartridge into a compatible manual or powered sealant gun.
- Apply the Sealant: Extrude a continuous, controlled bead along the required seam or joint.
- Tool the Bead: Smooth or shape the sealant as required, following the manufacturer’s recommended working time and tooling method.
- Allow Skin Formation: Under the stated reference conditions, the sealant forms a skin in approximately 30–60 minutes.
- Allow Sufficient Curing: Protect the applied sealant from disturbance and allow adequate curing time for the bead dimensions and environmental conditions.
- Finish the Repair: Once suitable for further processing, prepare and paint using a compatible automotive coating system.
Important: The supplied product information states an approximate 24-hour cure at 23°C and 50% relative humidity. This should not be treated as a guaranteed full cure time for every bead thickness or application.
Application Note: Avoid exposing uncured sealant to conditions that could compromise adhesion or curing. Follow the manufacturer’s recommendations for tooling, sanding, painting and return to service.
Skin Formation, Curing & Working Conditions
MHP Polyurethane Seam Sealer begins forming a surface skin after application, with the supplied product information indicating approximately 30–60 minutes under specified conditions.
The curing process develops the sealant’s final flexible properties over time.
Temperature, humidity, joint depth and bead thickness can influence the rate of curing.
Although the supplied description refers to a 24-hour cure, deeper or thicker applications may require additional time before reaching their final properties.
Important: Always follow the current manufacturer’s technical data sheet when determining suitable curing, painting and handling times for the intended application.
Safety, Storage & Important Information
- Product Safety – Read the current Safety Data Sheet before use.
- Ventilation – Apply in a suitably ventilated working environment.
- Personal Protection – Use appropriate protective gloves, eye protection and other equipment specified in the Safety Data Sheet.
- Surface Preparation – Ensure substrates are clean, dry and compatible with the sealant.
- Skin Contact – Avoid unnecessary contact with uncured sealant.
- Storage – Store cartridges according to the manufacturer’s stated temperature and environmental requirements.
- Moisture Exposure – Protect uncured material from conditions that may compromise the finished seal.
- Structural Applications – Do not substitute for approved structural bonding products.
- Disposal – Dispose of unused material and packaging according to applicable regulations.
Important: Polyurethane sealant formulations vary. Refer to the current product label and Safety Data Sheet for the exact hazard classification, handling requirements, storage conditions and disposal instructions.
Technical Documentation & Product Information
For detailed information about substrate compatibility, curing characteristics, preparation requirements and safe handling, refer to the latest MHP manufacturer documentation.
MHP Polyurethane Seam Sealer – Technical Information
Consult the current product Technical Data Sheet for detailed application guidance, curing performance, material compatibility and physical properties.
MHP Polyurethane Seam Sealer – Safety Information
Refer to the current Safety Data Sheet for product hazard information, personal protective equipment, storage requirements and disposal guidance.
Document Note: No verified manufacturer PDF links have been supplied for this product. The current technical and safety documentation should be obtained from the manufacturer or supplier before adding downloadable documents to the listing.
More Automotive Adhesives, Sealants & Bodywork Products
Explore our Adhesives & Sealants range for additional professional products suitable for automotive sealing, bonding, repair and maintenance applications.
Our range includes workshop adhesives, automotive sealants and related consumables for suitable vehicle repair and maintenance tasks.
Browse Our Automotive Adhesives & Sealants Range →
Product Selection: Always select an adhesive or sealant suitable for the intended substrates, joint design, operating conditions and manufacturer requirements.
Why Shop with Ace Consumables?
25+ Years of Industry Expertise
Professional automotive and workshop consumables backed by extensive industry knowledge and experience.
Fast & Reliable UK Delivery
We aim to dispatch orders placed before 12 noon on the same working day, subject to stock availability.
Customer Reviews
Read independent customer feedback on Trustpilot.
Choose MHP Polyurethane Seam Sealer & Adhesive 310ml for professional automotive bodywork sealing, compatible non-structural bonding and vehicle repair applications. Featuring a flexible polyurethane formulation, multi-surface adhesion, weather-resistant sealing properties and a paintable finish, this versatile cartridge sealant is ideal for bodyshops, restoration specialists and workshop maintenance. Order MHP automotive seam sealer from Ace Consumables today.
