GFTK Xtreme Joint Compound: VDW 850 Plus 55 lbs

Product Specs

Pressure washer Friendly

Xtreme Joint Compound delivers exceptional strength and durability, creating a resilient bond that resists cracking, staining, and damage. It also stands up to heavy traffic, moisture, UV, and chemicals, keeping your tile joints tough for the long haul.

Water-permeable

Water-permeable joints let water pass through, keeping stones drier and reducing runoff. That drainage helps recharge groundwater and slow erosion, which is especially valuable in freeze–thaw climates.

Self-Compacting

Self-compacting joints minimize voids between pavers, boosting strength and creating a tighter bond and seal—no extra compacting equipment needed.

Applicable In Rain & Low Temperatures

Apply anytime—even in rain or cold. No more waiting or returning to finish the job.

Installation Instructions

Construction Site Requirements

• A stable, load-bearing structure, water-permeable sub-base, and the bedding layer – we recommend the PHNA Xtreme Trass Bedding Compound (VDW 480)
  • All must be correctly designed and installed for the anticipated traffic loads and in accordance with ASTM.
• The Xtreme Joint Compound is designed for small to large formats and cannot be used to compensate for substructure settlement or seal and waterproof surfaces. Movement joints must be installed as necessary to comply with the required structural design and any anticipated levels of movement.
• The PHNA Xtreme jointing compound can be applied on damp/wet paving in high humidity and rain.
  

Preparation

• Preparation/Pre-wetting: Thoroughly clean the surface of dirt, cement residues, organic materials, or any other possible contaminants, including cleaning out all of the joints to the required depth.
• We recommend pre-treating porous and/or sensitive paving surfaces with the PHNA Xtreme Stone Protect 3-in-1 (VDW 950).
  • Please allow at least 24 hours after application before grouting.
• Thoroughly pre-wet the surface of the paving and mask adjacent surfaces that are not to be jointed.
• Always use clean and fresh tap water!

Mixing

1. Open your bucket of Xtreme Joint Compound and remove the separate bottle of liquid hardener, then set it aside.
2. Using an appropriate dual- or single-paddle drill mixer, pre-mix the aggregate for a minimum of 30 seconds,
3. Then add the hardener and mix for a minimum of 3 minutes until the mixture is smooth and homogeneous.
4. Proper mixing is important! Any material that is not thoroughly mixed must not be used. No water should be added during the mixing process.

Filling the Joints

1. Apply immediately after mixing, by pouring the Xtreme Joint Compound directly onto the pre-wetted surface.
2. Work the self-compacting material thoroughly into the joints using a rubber squeegee and/or stiff broom.
3. If the viscosity of the product diminishes, re-moisten by spraying lightly with water from a hose.
4. The paved area must be kept constantly wet during application.
5. We recommend working from the highest to the lowest points.
6. Do not mix partial units of the product. Any unmixed material must not be used.
7. All tools and shoes should be regularly cleaned with water.

Cleaning Off

1. Remove any excess Xtreme Joint Compoundresidue from the area within 5 minutes
   • (Immediately at temperatures over 20 °C / 68 °F) by spraying lightly with water from a hose.)
   • You will notice a white film being washed away.
2. Avoid washing material out of the joints.
3. Be careful to clean the paved surface towards areas not yet jointed.
4. Do not allow any water containing residues to pond, stand, or dry out on the completed areas.
5. Finally, remove any remaining fine residues with a damp coconut fiber brush
   • Do not brush any residual dry material into any unfilled joints.
6. Clean this brush in water frequently.

Important Information

• Remain off the freshly applied areas for a period of min. 24 hours
  • Or until the paving surface is no longer tacky. Then, the areas can be walked over.
• The area can be fully released to vehicular traffic after 3 – 5 days, when fully hardened.
• In general, a strength test should be carried out before final clearance of the area.
• A very thin film of the resin binder may remain on rough surfaces or any surfaces that are not cleaned thoroughly.
• This film will disappear after a period of exposure to traffic and weathering.