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Free Delivery on Full Pallets & Selected Lines

Collection by Appointment

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ProJoint V400-WT

£79.99 Ex. VAT - £95.99 Inc. VAT

The ultra high strength, two-part epoxy resin mortar system, suitable for areas of vehicular access up to 40 tonnes!

ProJoint V400-WT 2-part resin mortar, brush-in grout for stone, paving slabs & setts, is weed, pressure washer and frost resistant! And available to purchase in Neutral (buff), Mid-Grey and Black.

We aim to offer the most competitive prices online, if you see Pro-Joint V-400 elsewhere cheaper, then please do give us a call ☎️ 0330 122 1025!

In stock

Select a product variation to get estimate Estimated delivery date, click here for info
Next Day Delivery available at checkout
Please see our FAQ’s for more information.

Delivery & Returns Info

Delivery is calculated on size & weight of order, charges displayed when added to basket. Small orders via courier, larger orders via Pallet Network (Click & Collect available call 0330 122 1025 or 01827 794 350). Need further info, click here.

Weight Price Volume
0-13KG£9.00+VAT1 Small Bag / Tub
13.01-25KG £10.00+VAT1 Large Bag / Tub
25.01-50KG £19.00+VAT 2 x Bags / Tubs
50.01-75KG£28.00+VAT 3 x Bags / Tubs
75.01-100KG£36.00+VAT4-5 Bags /Tubs
100.01-249 KG£42.50+VAT 5-9 Bags / Tubs
249.01-750KG£47.50+VAT10 Bags Plus
750.01KG + £50.00+VAT 30 Bags Plus
Full Pallets FOC* £0.0052 Tubs / 56 Bags
Premium Next Day Service+avg. £15 Click here for prices
Scotland Delivery Service Click here for prices
Local Delivery & Click & Collect: ☎️ 0330 122 1025

*Small additional charges may apply to certain parts of Scotland or areas with HGV Restrictions. Next Day delivery + £15 (*exc. apply – Full Pallets £80 on a Next Day Service)

Returns, cancel up to 14 days from date of delivery. Product to be returned in the same condition & packaging. No returns for cementitious & perishable products. You are responsible for returning goods to The Paving Experts. Need further info, click here.

For any advice; technical, product, stock or quantity needed, call our team on 0330 122 1025.

how much do i need?


Slab Width

Slab Length

Joint Width

Joint Depth


Nexus ProJoint V400-WT – for heavy vehicle loads up to 40 tonnes!

ProJoint V400-WT is the perfect solution for filling paving joints between paving slabs and setts, on pedestrian and vehicular areas with medium to heavy vehicle loads up to 40 tonnes! V400-WT resin paving grout is suitable for many types of natural stone and concrete paving.

The two part epoxy resin system is easily mixed and quickly applied as a slurry to dampened paving. It has increased water tolerance to give it the ability to be used in damp weather and light rain. V400-WT’s high performance means that it is used widely for both domestic DIY projects and commercial projects, where the paving and joints need to tolerate cars as well as pedestrian traffic, such as driveways.

(Please note: not suitable for delicate porcelain, use ProJoint Porcelain Grout instead)

  • Two part resin based mortar system, cement free
  • Medium to heavy traffic loads up to  40 tonnes., ideal for driveways and high traffic areas
  • Fast application
  • Easy: No more bending or kneeling and much less effort
  • Applied to wet surfaces plus increased water tolerance for use in light rain
  • Professional results: no mess, and no returning for cleaning
  • Self compacting and suitable for joint widths from 5mm upwards
  • Weed, pressure washer and frost resistant
  • Colours available: Neutral (buff), Mid-Grey and Black


Ensure the joints are cleaned out to a minimum depth of 25mm for 40t traffic loading, and a minimum joint width of 5mm. Paving must be firmly bedded and stable prior to filling joints and laid on bedding material suitable for the intended traffic loading. Liberally wet the paving prior to mixing allowing the water to soak into the surface. V400-WT should be mixed by using a plasterers’ whisk. Add the sand to a mixing vessel and when wearing appropriate PPE, pour the resin and hardener together and begin mixing. Mix for around two minutes until thoroughly mixed and then add 3 litres of water to the mix (equivalent to 2 of the resin containers). Mix for a further three minutes until the mix becomes a free flowing slurry.


Ensure that the paving is still wet and surface temperature is between 0°C and 25°C. Do not allow the paving to dry out during application and care should be taken when using the product on dark paving due to high surface temperatures. Empty the mix directly onto the paving and move the mix using a squeegee over the total area allowing the empty joints to fill completely. After 10 to 15 minutes use a medium soft brush at 45° to joints and sweep off the excess sand leaving the paving clean. It is particularly important to sweep the paving clean before the product cures to ensure any remaining residue does not set on the paving surface. The fluid nature of the mortar means that no further compaction of the joint is required. A trowel or iron can be used if necessary once the mortar has begun to cure to achieve a traditional finish. Increased water tolerance means that the product can be used in light rain but does need protecting from prolonged and heavy rain as this will delay the cure and could cause fluid damage. Make sure that any protective cover does not come into contact with the fresh joints; air circulation over joints is required during curing time. Cure times are dependant on temperature and humidity but as a guide can accept foot traffic after 12 hours and vehicle traffic after 24 hours.

ProJoint V400-WT is not recommended for porcelain – please refer to ProJoint Porcelain Grout. V400-WT™ may highlight and enhance the natural surface colours and textures of the paving – this sheen can be especially noticeable on grey paving, including granite, so a test area is advised before use. It is important to spread the mix across the total paving area to ensure the potential effect is uniform. Please note that this is a temporary effect and weathering and foot traffic accelerate its disappearance. For extra porous paving or to minimise any effect use Fusion or V35-UV


Refer to manufacturer’s guidelines here



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