Read the information document regarding the minimum two-year legal warranty provided in the European Union.
PROCHIMICA - Multifiss Professional 80ml | Hybrid Polymer Sealant Adhesive | Immersion Bonding
PROCHIMICA - Multifiss Professional 80ml | Hybrid Polymer Sealant Adhesive | Immersion Bonding - White is backordered and will ship as soon as it is back in stock.
Description
Description
PROCHIMICA Multifiss Professional – Hybrid Polymer Cross-Linking Adhesive Sealant – 80ml – Underwater Adhesive – 25-33 Year UV Resistance
Multifiss Professional by PROCHIMICA is a professional and versatile hybrid polymer cross-linking adhesive sealant for all building, industrial, and marine applications. It cures by reacting with atmospheric moisture, forming a high-performance, permanently flexible elastomer. It adheres without primer to almost all substrates, even underwater. Solvent-free, it does not shrink, run, or form bubbles during application. Certified UV resistance with an expected lifespan of 25 years for clear and 33 years for colored (ATLAS UVTEST — ASTM G154 Cycle 2). The 80ml size is ideal for small jobs, spot repairs, and occasional use. Available in 4 colors: White, Grey, Clear, Black.
- Adheres and seals even underwater – ideal for swimming pools, marine and naval environments
- No primer required on almost all substrates – metals, wood, glass, concrete, plastics (except PE, PP, PTFE)
- Permanently flexible elastomer – does not become rigid over time, absorbs thermal expansion
- Solvent-free – safe for sensitive substrates, no shrinkage, no bubbles, no running
- Certified UV resistance – 25 years (clear) and 33 years (colored) — ASTM G154 Cycle 2
- Adheres to damp substrates – can be applied even in high humidity conditions
- 80ml size – ideal for spot repairs, small jobs, and occasional use
- 4 colors available – White, Grey, Clear, Black
Compatible substrates – adheres without primer to:
- Metals: raw or anodized aluminum, raw or stainless steel, brass, copper, iron, galvanized sheet metal, painted or pre-painted metals
- Building materials: cement, concrete, masonry, plaster
- Wood: raw, painted, treated wood
- Glass: flat, tempered, laminated glass
- Plastics: ABS, PVC, polycarbonate, plexiglass (PMMA)
- Foams: expanded polyurethane and rigid foams
- Not compatible with: PE (polyethylene), PP (polypropylene), PTFE (Teflon)
UV resistance – certified ASTM G154 data
- Test performed: ATLAS UVTEST — ASTM G154 Cycle 2 standard (UV + Condensation + Spray)
- UVB lamps for colored: 4,800 hours — expected lifespan 33 years
- UVB lamps for clear: 3,500 hours — expected lifespan 25 years
- Practical meaning: UV resistance certified by an accredited laboratory, essential for outdoor applications exposed to direct sunlight
Available variants
| Color | SKU | EAN | Typical application |
| White | MLT/B80 | 8033075910150 | White fixtures, sanitary ware, light tiles |
| Grey | MLT/G80 | 8033075910167 | Cement, aluminum, grey facades |
| Clear | MLT/T80 | 8033075910181 | Glass, polycarbonate, invisible applications |
| Black | MLT/N80 | 8033075910174 | Automotive, black joints, industrial applications |
Main features
- Hybrid polymer cross-linking (MS Polymer): hybrid technology that combines the advantages of polyurethane (high adhesion, flexibility) and silicone (UV and temperature resistance) without their disadvantages. Paintable after cross-linking, unlike traditional silicone.
- Underwater adhesive: can be applied directly to wet or submerged surfaces to repair cracks, joints, and leaks in swimming pools, tanks, and marine environments.
- Permanently flexible elastomer: after cross-linking, it remains flexible, absorbing thermal expansion and vibrations without cracking.
- Solvent-free: does not attack solvent-sensitive plastics (polycarbonate, plexiglass), does not emit toxic fumes, and does not shrink during cross-linking.
- 80ml size: ideal for spot repairs, small jobs, occasional use, or for trying the product before purchasing the 290ml size.
Technical data
| Brand | PROCHIMICA |
| Product | Multifiss Professional |
| Type | Hybrid polymer cross-linking adhesive sealant (MS Polymer) |
| Size | 80ml — tube |
| Available colors | White, Grey, Clear, Black |
| Cross-linking | By reaction with atmospheric moisture |
| Solvents | Solvent-free |
| Underwater use | Yes — adheres and seals even underwater |
| UV resistance (colored) | 33 years expected — UVB 4,800h — ASTM G154 Cycle 2 |
| UV resistance (clear) | 25 years expected — UVB 3,500h — ASTM G154 Cycle 2 |
| Damp substrates | Yes |
| Paintable | Yes (after full cross-linking) |
| Not compatible with | PE, PP, PTFE |
| Weight | ~120 g |
| Country of origin | Italy |
Applications
- Spot repairs: sealing small cracks, fissures, and joints in building and DIY.
- Fixtures and joinery: perimeter sealing of windows, doors, and glass panels.
- Swimming pools and aquatic environments: underwater repair without draining the pool.
- Marine: repairs in saline environments and shipbuilding.
- Automotive: bonding and sealing of bodywork components.
- Occasional use: the 80ml size is ideal for those who use the product occasionally or want to try it before purchasing the 290ml professional size.
Product video
Frequently Asked Questions (FAQ)
Q: What is the difference between the 80ml and 290ml sizes?
A: The product content and characteristics are identical. The 80ml size is a tube ideal for spot repairs, small jobs, and occasional use. The 290ml size is a standard cartridge for a silicone gun, suitable for larger jobs and professional use. The 290ml size also has the Copper variant not available in the 80ml.
Q: Can I use it to repair a swimming pool without draining it?
A: Yes. Multifiss Professional is specifically formulated to adhere and seal even underwater. It can be applied directly to wet or submerged surfaces to repair cracks, joints, and leaks.
Q: Is it paintable after application?
A: Yes, unlike traditional silicone, Multifiss Professional is paintable after full cross-linking.
Q: Which color should I choose?
A: Choose the color closest to the substrate. Clear is ideal for glass or where you want to minimize visibility. The colored options (White, Grey, Black) have superior UV resistance (33 years vs 25 years for clear).
PROCHIMICA - Multifiss Professional 80ml | Hybrid Polymer Adhesive Sealant | Underwater Adhesive
PROCHIMICA: professional chemical solutions for building, industry, and marine applications.
Security Information
Security Information
Data about the Person Responsible for the Product: Prochimica New Technology Srl - Regione Rivere, 4 - 15010 Terzo (AL)
Contact Person Responsible for the Product: info@prochimica.it
Product Safety Document: Scheda di Sicurezza
Warranty
Warranty
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At BricoHome, we are committed to offering you high-quality products, aware that your peace of mind goes beyond a simple transaction. To ensure your complete satisfaction, we have implemented a robust warranty policy, demonstrating our commitment to quality and reliability.
In this section you will find information about our product warranty. We want you to be well-informed and confident in your choice, so we invite you to carefully read the warranty information. Our goal is to ensure you have a worry-free shopping experience, with the certainty that, if necessary, we are here to support you at all times.
Please contact us for any warranty request:
- Call us at 376 0343302
- Write to us at info@jicomputer.com
- Complete the contact form
Please specify: first and last name, order ID, brand, product, and issue. We will look for the fastest solution for you and contact the brands as necessary.
PRODUCT WARRANTY (STANDARD)
The warranty period is 12 months from the product purchase date for consumers who have an invoice. It is 24 months for those who have a receipt or other proof of purchase.
PRODUCT WARRANTY WITH SEAL
For sealed products (e.g., insecticide), the warranty does not apply once opened. However, if the seal remains intact, you are entitled to a free return within 30 days.
Shipments
Shipments
Shipping Details
Shipments are made via the following couriers

When ordering, you can enter your shipping preferences in the notes section, choosing the desired courier.
Shipping Costs:
- Italy area (except Sardinia)
- Standard shipping (€6.90), FREE for orders over €99
- Priority shipping (€9.90), reduced cost to (€3.90) for orders over €99
- Italy area (Sardinia only)
- Standard shipping (€10.90), FREE for orders over €99
- Eurozone 1 (Austria, Belgium, Croatia, Czechia, Denmark, France, Hungary, Luxembourg, Netherlands, Poland, Slovenia, Spain, Germany)
- Standard shipping (€19.99)
- Eurozone 2 (Romania)
- Standard shipping (€24.95)
Shipping times:
- 24/48 WORKING HOURS FOR NORTHERN AND CENTRAL ITALY;
- 48/72 HOURS FOR SARDINIA AND MINOR ISLANDS;
- 24 WORKING HOURS FOR SOUTHERN ITALY INCLUDING SICILY;
Returns are always guaranteed and FREE, within 30 days of purchase.
Free returns
Free returns
In any case, the consumer buyer has the right to withdraw from the contract without penalty and without specifying the reason within 30 days of receiving the purchased goods . If the withdrawal occurs within this period, we will arrange for the collection of the goods by courier at our expense , without the customer having to take any action. The customer must provide us with a date and time slot of at least 3-4 business hours , so we can schedule the collection at a convenient time.
- Refunds (if applicable)
Once we receive your return, we will carry out all necessary checks, verifying various aspects: such as the presence of the original box, the presence of any accessories or parts included, any damage not present in the original new product, etc. If your request is approved, the refund will be processed and a credit will automatically be applied to your card or original payment method. within 5 working days.
- Changes (if applicable)
We only replace items if they are defective or damaged.
In the event that the Consumer decides to exercise the right of withdrawal within the timeframes indicated above, you must notify the seller of this By email to info@jicomputer.com, or by completing the easy return form by clicking here.
If your return request exceeds 30 days, please provide as many details as possible so we can better assess the situation. Please note that in this case, the customer will be responsible for the return shipping costs.
Tax Deductions
Tax Deductions
A guide to purchasing with tax deductions and reduced VAT on Bricohome
If you're purchasing products for renovations, home improvements, or for specific needs, you may be eligible for significant tax breaks. Find out how to access these benefits and make your purchases even more affordable.
Who is entitled to it?
Tax breaks and reduced VAT are reserved for:
- Private citizens carrying out building renovation or energy efficiency improvement work;
- Condominiums for work on common areas;
- Companies and professionals who carry out specific interventions;
Which products are eligible for the discounts?
Not all products are eligible for tax relief. Generally , tax relief applies to materials and devices used for renovation, energy efficiency, and architectural barrier removal projects. To check the suitability of a specific product , we recommend that you consult the current legislation or contact our customer service.
On Bricohome, the most popular product categories eligible for the discounts include: Electric pumps, Pressure controls, Taps, Thermostats, Control units, Circulators, Intercoms and video intercoms.
Reduced VAT rates
Depending on the type of intervention, different VAT rates apply:
- 4% for the construction or purchase of a first home (if eligible).
- 10% for extraordinary maintenance, restoration, or renovation work.
- 22% for all products not subject to tax relief.
How to apply for the discount on Bricohome
To obtain the reduced VAT, it is necessary to:
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Place your order on Bricohome by selecting bank transfer as your payment method.
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Send a request to ......... with the subject line: "Tax deduction request for order ..." (the order number will arrive a few seconds after confirming the order on the website). Specify and provide the following information:
- Name
- Surname
- Address
- Telephone
- Tax ID code
- Type of deduction
- Reference protocol number
- Attach a copy of your identity document
- Attach documents certifying your eligibility to meet the requirements.
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Please wait for your request to be processed. We will issue an invoice and send you bank transfer instructions within 48 business hours.
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Make the transfer following the instructions received.
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Once payment is received, we will proceed with the shipment of the goods.
Doubts or questions?
Write to us at info@jicomputer.com
Call us at +39 376 0343302


