Reusable screw caps for standard 310 ml sealant and adhesive cartridges

Keep every tube fresh. Stop the clogs. Save your profit.

Who it’s for

Painters and decorators. Plumbers. Kitchen and bathroom fitters. Any pro who hates binning half-used tubes.

Why pros buy these

1. Stops drying and clogging
   Twist on after use. Forms a snug, leak-resistant seal so your next bead runs clean.

2. Saves you real money
   Bin one tube a week at £4.50 and you waste £234 a year. On premium silicone at £8 a tube, that’s £416 a year. These caps pay for themselves fast.

3. Keeps your day moving
   No more digging out set material. No more emergency merchants runs.

4. Built for site use
   Durable, reusable caps with grippy edges for gloved hands. Made in our South Downs workshop. Available in Black, White, or Terracotta to match your kit.

5. Fits what you already use
   Designed for standard threaded nozzles on 310 ml cartridges for silicone, mastic and construction adhesives.

The bigger picture

The UK generated 59.4 million tonnes of construction and demolition waste in 2020. Cutting plastic and product waste on site matters. Every cartridge you save helps.

WRAP has highlighted tens of thousands of tonnes of plastic packaging placed on the UK construction market each year, so small changes at the nozzle end genuinely add up across the trade.

Independent summaries also note construction produces around 62% of the UK’s total waste, making waste-reduction habits a competitive advantage as well as a responsibility.

What you get

• 6x Silicone Sealant Saver Caps
  Colours: Black, White and Brown

  How to use

1. Finish the bead.

2. Wipe the nozzle clean.

3. Purge a tiny dab to push air out.

4. Twist the cap on firmly.

5. Store upright where possible.

Spec

• Fit: Standard threaded nozzle on 310 ml cartridges

• Use with: Silicone, mastic, decorators’ caulk, construction adhesives

• Material: Tough, flexible 3D-printed polymer

• Finish: Light texture for grip

• Made in: Hampshire, UK

Money saver quick math

• One saved tube per week at £4.50 ≈ £234 a year.

• One saved premium tube per week at £8.00 ≈ £416 a year.
  Even if you only save one tube a month, that’s £54–£96 back annually for pennies per cap.

Shipping and returns

• Fast free UK delivery from our workshop.

• No-quibble returns if you’re not delighted.

Trade and bulk

Running vans or a team? We can supply 24, 48, 100+ with multi-buy pricing. Message for a same-day quote.

Notes

• Compatible with the vast majority of standard cartridges.

• Not affiliated with any sealant or tool brand.

• Colour tone may vary slightly between batches.

Add to basket now and stop throwing profit in the skip