£25.85£30.50 +vat @ 20%

Free Delivery

On orders over £90.00+VAT, up to 20Kg.

Delivery Details

Free Shipping UK mainland (Most Destinations)

Free Standard Shipping (not next day) on orders worth £90 +vat or more, which also weigh 20kg or less to non-remote, UK mainland locations.
Free shipping is shown at checkout on valid orders

Rustbuster intend to ship all orders within 24 hour via economy carriage shipping, this can be next day but could be up to 2 days.

Next day delivery DOES NOT include Saturday or Sunday. Any next day orders placed on a Friday will be received on Monday, as Saturday is not included as a working day.

Rustbuster Standard Economy shipping is £8.50+vat for up to 20kg.

Remote areas/Scottish Highlands and non-UK Mainland areas may be subject to additional charges and a longer delivery time. This is determined by our couriers not Rustbuster.

Northern Ireland and Ireland
Up to 20kg of Hazardous goods can be sent, this currently costs £25.00+vat, we do however have a Stockist in Ireland and this may workout a more cost effective way to purchase.

International shipping
International shipping prices vary, please contact Rustbuster if your country is not listed at Checkout.

Need Assistance?

For more product information or have general question, please contact us.

Share This Product

Product Details


Smooth 7 is ideal for repairing large, deep or uneven areas. The formula is specially developed to give excellent filling properties whilst maintaining smooth spreading capabilities and good adhesion.

  • Easy spreading
  • High adhesion on multiple substrates
  • Ideal for large or uneven areas
  • 3ltr pack size

To view technical data please click here

multi function fillers

upol 7 smooth filler

upol trusted products


A two component (hardener included) multifunctional paste used for the filling of deep to medium holes and imperfections in most substrates prior to being over-painted.

Ideal for steel and GRP but can be used across most substrates and can be applied to bare steel.


  • Excellent filling properties
  • Medium to Deep panel damage filling
  • Light Grey finish
  • 3L litre Tin / 4 yr shelf life


UPOL 7 is specially formulated for the professional user but is so easy to apply that DIY or first time users will be filling deep holes to perfection in seconds.


  • Easy to sand
  • Fine filling
  • Ideal for large and uneven areas
  • High adhesion on multiple substrates
  • Can be overcoated with primer and topcoat



It is of great importance to keep yourself and the people working with you healthy and safe from any harm.


  • Hardener mixing ratio (ideally mix on an onion board)
  • 10°C Temp – 3% hardener
  • 20°C Temp – 2% hardener
  • 30°C Temp – 1% hardener
  • Max fill depth 4-7mm
  • Initial sanding P80-P120
  • Final Sanding P180-P240
Rusty's Top Tips from Rustbuster

Hello Corrosioneers!

RUSTY here, for handy tips and guides on how to get the best from our Rust busting products, check out my helpful guides at Rusty’s Tops Tips

Related Products