BestSeal 500P Flex

BestSeal 500P Flex is used for sealing joints and expansion joints such as:

• Industrial concrete floors, including areas subjected to heavy traffic loads.
  Indoor and outdoor parking areas.
  Taxiways, aprons, and airport runways.
  Terraces finished with ceramic tiles.

• One-component, pre-mixed, easy to apply.
  Resistant to harsh conditions, suitable for both indoor and outdoor use.
  Excellent adhesion to many materials: concrete, brick, stone, mortar, wood, metal, glass, and plastics (FRP, GRP, …).
  High elasticity with movement capability up to 25%.
  Excellent tear resistance.

SURFACE PREPARATION:

• The substrate must be dry and free from dust, contaminants, grease, cement laitance, and old paint layers with poor adhesion that may affect the sealant bonding performance.

• For weak substrates, highly deformable surfaces, or substrates with high residual moisture content: apply BestPrimer AC409 primer.

Note: The primer is intended to improve the service life of the sealed joint. The primer does not replace proper surface cleaning procedures or improve the substrate strength.

APPLICATION PROCEDURE

Application:

• Install backer rod according to the technical requirements of the joint and apply primer if necessary. BestSeal 500P Flex should be mechanically stirred using suitable equipment until a homogeneous consistency is achieved.

• Pour BestSeal 500P Flex into the prepared joint so that the material fully contacts both sides of the joint walls.

• Fill the joint completely and avoid entrapped air during application. It is recommended to apply masking tape along both sides of the joint before applying BestSeal 500P Flex to prevent staining, and remove the masking tape immediately after application while the sealant is still wet.

Note:

• It can be overcoated with conventional façade coating systems. However, preliminary testing should be carried out to ensure compatibility.

• Color may change due to exposure to chemicals, high temperatures, or UV radiation; however, the product performance will not be affected.

• Do not use BestSeal 500P Flex on glass surfaces, bitumen, natural rubber, EPDM rubber, or areas exposed to oil leakage, plasticizers, or solvents capable of dissolving the product.

• Do not use BestSeal 500P Flex for swimming pool sealing. It is not suitable for areas subjected to high water pressure or prolonged water immersion. Best performance is achieved in well-ventilated areas.

• Do not allow BestSeal 500P Flex to come into contact with isocyanate compounds, solvent-based cleaners, release agents, or solvents.

CLEANING:

• Use BestThinner SC01 to clean tools immediately after use and before the material begins to cure. Once cured, use appropriate mechanical methods for cleaning tools.

SAFETY INSTRUCTIONS:

• BestSeal 500P Flex may cause allergic reactions on sensitive skin after prolonged contact. Gloves, masks, and safety goggles should be worn during application.

• In case of contact with eyes, nose, mouth… rinse immediately several times with clean water before going to the nearest medical facility for timely and proper treatment.

• Dispose of the product in accordance with local environmental protection and waste management regulations.