Submitted by webmaster on 2 September 2025

Vetoflex AC731

High performance, antifungal, general-purpose siliconized acrylic joint sealant.

Vetoflex AC731 is a single-component, high-performance, water-based, general-purpose, siliconized, paintable sealant. It exhibits excellent adhesion to most substrates commonly used in construction, including concrete, mortar, blockwork, wood, and anodized bronze. Additionally, it bonds effectively to certain painted surfaces. This ease of application makes it efficient for sealing joints between construction components exposed to moderate stress. It is ready to use and suitable for sealing both internal and external joints

Uses

  • Crack filling.
  • Around doors and window frames.
  • Around ventilation grills.
  • Joints between ceilings and walls.
  • Joints in blockwork and brickwork where only low movement is expected.
  • Sealing of duct holes, and lightweight cladding panels. etc.

Advantages

  • Antifungal.
  • Solvent free.
  • Non-Cracking.
  • Low VOC content.
  • Can be overcoated (Paintable).
  • Excellent adhesion.
  • Excellent weather ability.
  • Cures at room temperature at ambient humidity conditions.
  • No surface pre-treatment or primer required in most of the surfaces.

Usage Instructions

Joint surfaces must be clean and dry. Remove all dust and laitance by grit blasting, grinding or rigorous wire brushing. Blow all joints clean using dry, oil free compressed air. 
Where a neat finish is required, masking tape should be applied down each side of the joint prior to the start of the sealant works, it should be removed immediately after tooling the sealant.

Vetoflex AC731 can be applied by hand or air operated caulking gun. Ensure that the sealants pushed firmly into the joint to give complete wetting of the surface. 
Any tooling of the sealant surface must be carried out immediately using a joint shaping tool soaked in white spirit, or wet sponge. If required, the edges of the joint can be protected with masking tape. If this is done ensure that the tape is removed immediately after tooling.

Remove Vetoflex AC731 from tools and equipment with water immediately after use. Cured material can only be removed mechanically.

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