Sika MultiSeal AP

SIKA MULTISEAL AP – BITUMINOUS SEALING TAPE

DESCRIPTION

Sika MultiSeal AP is engineered to excel in sealing and repairing applications where water ingress poses a significant challenge. Whether you’re dealing with roofing projects or other building elements, this versatile sealing tape offers a powerful solution to keep moisture at bay.

APPLICATION

With its self-adhesive nature, Sika MultiSeal AP makes application a breeze. It exhibits excellent adhesion to a wide range of substrates and is designed to withstand varying weather conditions. The product is also compatible with bituminous substrates, can be over-painted, and is suitable for use even at low temperatures.

ADVANTAGES

Here are some key advantages of Sika MultiSeal AP:

• Ease of Application: Its self-adhesive property simplifies the application process.
• Strong Adhesion: Bonds effectively to various substrates, ensuring a secure seal.
• Weatherproof: Can withstand diverse weather conditions, ensuring long-lasting performance.
• Bitumen Compatibility: Works seamlessly with bituminous substrates commonly used in construction.
• Over-Paintable: Allows for further customization with paint.
• Low-Temperature Application: Ideal for use in cold climates.

PRODUCT INFORMATION

• Composition: Rubber-modified bituminous tape
• Packaging: Available in two sizes – 3m x 10cm (12 rolls per box) and 3m x 30cm (4 rolls per box).
• Appearance/Color: Matt grey and Terracotta
• Shelf Life: 72 months from the date of production when stored properly in the original, sealed packaging.
• Storage Conditions: Store in dry and cool conditions, protected from direct sunlight at temperatures between +5°C and +25°C.
• Thickness: Approximately 1.1mm

TECHNICAL SPECIFICATIONS

Here are the technical specifications for Sika MultiSeal AP:

Property	Specification
Tensile Strength	> 130 N/25 mm
Elongation at Break	100% approx. (ASTM D 1000)
Reaction to Fire	B2 (DIN 4102)
Service Temperature	-20°C to +80°C

CONSTRUCTION INSTRUCTIONS

Properly applying Sika MultiSeal AP is crucial to ensure a watertight and long-lasting seal. Follow these detailed construction instructions to achieve the best results:

1. SUBSTRATE PREPARATION

Before you begin, ensure that the substrate is clean, dry, and sound. The preparation process differs for non-porous and porous substrates:

For Non-Porous Substrates (e.g., metals, plastics, coated surfaces, glazed tiles):

• Clean the surface to remove any dust, dirt, or contaminants.
• Using a clean towel, apply Sika Aktivator-205 to the substrate. Make sure to cover the entire area to be sealed.
• Allow a flash-off time of more than 15 minutes but no more than 6 hours before proceeding with the application.

For Porous Substrates (e.g., concrete, aerated concrete, cementitious plasters, mortars, brick, etc.):

• Prime the surface with a bituminous primer, such as SikaProof Membrane, using a brush.
• Ensure even coverage and allow a flash-off time of more than 1 hour before applying Sika MultiSeal AP.

2. APPLICATION METHOD / TOOLS

Once the substrate is prepared, you can proceed with the application of Sika MultiSeal AP:

• Measure and cut the tape to the required length, leaving a slight excess to ensure complete coverage.
• Remove the release film from the bottom side of the tape, exposing the adhesive surface.
• Carefully align the tape over the area to be sealed and press it firmly onto the substrate.
• Use a suitable roller to apply even pressure along the entire length of the tape. This step helps to ensure proper adhesion.
• If you need to overlap multiple strips of Sika MultiSeal AP, make sure the overlap is at least 5 cm to maintain a watertight seal.

3. HEATING FOR IMPROVED ADHESION

To enhance the adhesion performance of Sika MultiSeal AP, you have the option to heat the tape during application:

• Gently heat the tape using a heat gun or propane torch. Be cautious not to overheat and damage the product or the substrate.
• Heating the tape makes it more pliable and increases its adhesive properties, especially in cold conditions.

4. CLEANING OF EQUIPMENT

After completing the application, it’s essential to clean your tools and equipment properly to maintain their effectiveness and prolong their lifespan:

• Use Sika® Remover-208 to clean any tools or application equipment that came into contact with Sika MultiSeal AP. This ensures that the equipment remains in good working condition for future use.

5. ADDITIONAL CONSIDERATIONS

• The upper side of Sika MultiSeal AP can be over-painted with most conventional paint systems, allowing for customization and aesthetic matching.
• Do not use Sika MultiSeal AP on natural stone, as it may not adhere properly.
• Avoid direct contact with joint sealants and adhesives. If contact is necessary, perform compatibility tests before applying to ensure a proper bond.

By following these detailed construction instructions, you can maximize the effectiveness of Sika MultiSeal AP in your sealing and repair applications. Whether you are working on roofing projects or other construction elements, this reliable and versatile sealing tape will help you achieve a durable and waterproof seal, ensuring the integrity and longevity of your structures.