SIKA MULTI PRIMER MARINE

What is SIKA MULTI PRIMER MARINE and why choose it

SIKA MULTI PRIMER MARINE is a non-pigmented, solvent-based epoxy primer designed for marine applications. It reacts with ambient moisture to form a thin film that acts as an adhesion bridge between different substrates and Sika one-component polyurethane products, as well as selected Sikasil sealants and adhesives. Its formulation makes it suitable for a wide range of metals and woods commonly used in the marine environment.

This primer is intended for professional users who require reliable bonding performance on boats, ships and other marine constructions, ensuring improved adhesion under real working conditions.

Main features

• Solvent-based epoxy solution that reacts with moisture.
• Non-pigmented, from colorless to slightly yellow appearance.
• Creates a thin, continuous primer layer that improves adhesion between substrates and Sika one-component polyurethanes.
• Also enhances adhesion of Sikasil sealants and adhesives.
• Suitable for many metals (aluminium, steel, galvanized steel and non-ferrous metals).
• Suitable for various woods commonly used in marine construction (teak, mahogany, Oregon pine, cork).
• Can be applied by brush, felt, lint-free cloth or foam applicator.
• Single-application primer: should be applied once with sufficiently dense coverage.
• Thermoplastic behaviour for up to 3 days after application; early high temperatures or mechanical stress on the bond line should be avoided.
• Designed for professional users with experience; preliminary tests on original substrates are required.

Technical specifications

• Chemical base: Solvent-based epoxy solution.
• Color (CQP001-1): Colorless to slightly yellow.
• Solids content: 34 %.
• Recommended application temperature (substrate and environment): 5 – 40 °C.
• Ideal application and surface temperature: between 15 °C and 25 °C.
• Application methods: Brush, felt, lint-free cloth or foam applicator.
• Coverage (on standard substrates): approximately 50 ml/m² (depends on substrate porosity).
• Airing time at 23 °C / 50 % r.h.:
  • Minimum: 30 minutes.
  • Maximum: 24 hours.
• Shelf life: 9 months when stored in a sealed container in vertical position, in a dry place at ≤ 25 °C.
• Packaging sizes:
  • 30 ml can (for single application).
  • 250 ml can.
  • 1000 ml can.
  • 5000 ml can.

Applications and use cases

SIKA MULTI PRIMER MARINE is formulated specifically for marine bonding and sealing operations where reliable adhesion is required between substrates and Sika one-component polyurethanes or Sikasil products.

Typical substrates

• Aluminium.
• Steel.
• Galvanized steel.
• Non-ferrous metals.
• Teak.
• Mahogany.
• Oregon pine.
• Cork.

When used on transparent or translucent substrates such as float glass and plastics, adequate UV protection is mandatory.

The product is suitable only for experienced professional users. Tests must be carried out on original substrates and under real conditions to confirm adhesion and material compatibility, especially on materials prone to stress cracking.

Application method (summary)

• Ensure surfaces are clean, dry and free from grease, oil, dust and contaminants.
• Adhesion can be improved by pretreatments such as sanding, cleaning and activating before applying the primer.
• Apply a thin but continuous, protective coat using a brush, felt, clean lint-free cloth or foam applicator.
• Apply the primer only once, ensuring sufficiently dense coverage.
• Close the container tightly immediately after each use, using the internal plastic liner and screwing the cap back on after pretreatment operations.
• Avoid high temperatures or early mechanical stress on the bond line for up to 3 days after application due to thermoplastic behaviour.

FAQ

1. On which substrates can SIKA MULTI PRIMER MARINE be used?

It can be used to improve adhesion on many metals such as aluminium, steel, galvanized steel and non-ferrous metals, as well as on woods like teak, mahogany, Oregon pine and cork. It can also be used to enhance adhesion of Sikasil sealants and adhesives.

2. What is the recommended airing time before bonding?

At 23 °C and 50 % relative humidity, the minimum airing time is 30 minutes and the maximum is 24 hours.

3. How should the surface be prepared before applying the primer?

Surfaces must be clean, dry and free from grease, oil, dust and other contaminants. Adhesion can be improved by pretreatments such as sanding, cleaning and activating prior to primer application.

4. Can I apply more than one coat of primer?

The product is designed to be applied once only. This single application must provide sufficiently dense coverage.

5. How should the product be stored and how long does it last?

When stored in a sealed container in vertical position, in a dry place at a temperature of ≤ 25 °C, the shelf life is 9 months. After opening, the product should generally be discarded about one month after opening if used frequently, or after two months in case of infrequent use. The 30 ml cans are intended for single use.

6. What should I do if the primer changes appearance or viscosity?

If gelation, separation or a significant increase in viscosity is observed, the primer must be discarded immediately.

Section 14 – Transport information

Consultar ficha técnica del fabricante.

Section 8 – Individual protection measures

Consultar ficha técnica del fabricante.

*Contenido generado por IA