LQS PRIMER FS – 2-component solvent-free epoxy primer

APPLICATION

LQS Primer FS is preferably used for the following applications:

• Primer for concrete substrates, cement plaster, and epoxy plaster.
• Suitable for surfaces with low to high absorbency.
• Primer for epoxy floor systems.
• Adhesive for self-leveling compounds and plaster.

ADVANTAGES

• Easy to apply, short application time.
• Low viscosity, ensuring good penetration.
• Non-toxic.
• Solvent-free, suitable for use in restricted areas.
• Excellent adhesion.

INSTRUCTIONS FOR USE

Surface preparation:

Concrete:

• The concrete surface must be dense and achieve a minimum compressive strength of 25 N/mm², with a minimum bonding strength of 1.5 N/mm².
• The surface must be clean, dry, and free from contaminants such as dust, oil, grease, old coatings, and curing compounds.
• Weak or dusty concrete must be removed. Surface defects such as holes, pores, cracks, and bumps should be repaired and smoothed.
• Check moisture and apply primer (if necessary):
  • Check surface moisture, relative humidity, and dew point before application.
  • If surface moisture is less than 5%, apply additional LQS Primer SB epoxy primer.
  • If surface moisture is 5% or higher, apply additional moisture-resistant LQS Primer MB epoxy primer.

Mixing procedure:

LQS Primer SB is supplied as a two-component kit, including a base component A and a hardener component B.

• Before mixing, stir component A thoroughly. Add all of component B into component A, then continue mixing for 5–20 minutes until a homogeneous mixture is achieved.
• Do not overmix to avoid air entrapment.
• Use a low-speed mixer (300–400 rpm) or an appropriate mixing tool.

Primer application:

• Ensure the primer is evenly and continuously applied on the substrate surface.
• For low to medium porosity concrete, one coat of LQS Primer SB may be sufficient.
• For high porosity concrete, apply two coats of LQS Primer SB (with coats applied perpendicular to each other).
• Application tools can include brushes, short-haired rollers, or squeegees.

Cleaning:

• Clean equipment and tools immediately after use.
• Once the primer has cured, it can only be removed by mechanical means.

IMPORTANT NOTES:

• Do not apply LQS Primer SB on surfaces with rising moisture.
• Do not substitute the primer with other products.
• The primer must be applied uniformly over the surface.

SAFETY INFORMATION:

• Personal protection: Wear appropriate protective clothing, goggles, gloves, and masks when handling the product.
• Ecology: Do not dispose of into water sources or soil.
• Transportation: Not classified as hazardous.

Refer to the Product Safety Data Sheet (MSDS) and other related safety documents for more details.