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SWP Derustit 4020 Pickle Paste

Product Code: 1669
  • £39.95 (inc. VAT)
+ In Stock Now | Usually dispatched within 24 hours
Free Next Working Day Delivery On Orders Over £100 Order before 3pm for this to apply
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Pasty mixture of hydrogen fluoride (hydrofluoric acid, hydrogen nitrate (nitric acid) and their salts.

Intended use: Pickling of stainless steel welding seams


Instructions for use

General notes: Please respect safety data sheet ad instructions for use. Reaction times and results depend on different factors. Practical tests with sample parts should be carried out to define the optimum parameters.

Preparation: Remove oil,grease,welding spray, coatings and adhesives.

Application: Apply evenly in a coating of approx. 2 min.

Reaction time: 30 to 120 minutes at an optimum ambient temperature between 22 to 25 degrees when using derustit 4020. Please consider loss of brilliance of +/- 10 degrees, reaction time may be halved or doubled.

Further treatment: thoroughly rinse treated parts with water until ringsing water is neutral and surfaces are acid-free.

Please note: Use water with a hardness of < 10 degrees dH in order to minimize water stains and lime residues!

Additional notes: Do not use at high temperatures or under direct sunlight.

TGS Industrial use DPD for all of our UK Deliveries, if when placing your order you include your email address and your mobile telephone number (if available) they will then send you and email or a text to your phone with an approximate delivery time for your goods.


UK Mainland Only - Next Working Day

Free Delivery on all orders over £100

Under £100 delivery is - £6.50 

Delivery before 12 - £12.00

Saturday delivery - £14.95

Scottish Highlands - 2 - 3 Working Days - £13.95

Scottish Islands / Channel Islands / Isle of Wight / Scilly Isles - £16.95

Northern Ireland and Southern Ireland - £12.95

(Please note some post codes may take 2 to 3 days for delivery)

Customers can also call into our showroom and collect any item they would wish to purchase. Please telephone in advance

When can I expect my goods to be delivered?


If we receive your order before 3pm (GMT) and your items are in stock, we will dispatch the same day! Delivery can then be expected next day for mainland UK. Please note, due to occasional problems with electronic systems, delays may occur in TGS receiving orders via email or the website, and this may affect delivery.



We will refund or credit any item returned within 7 days of purchase if it has been damaged in transit or the wrong item has been dispatched, provided the item is unused and in its original packaging. If any item is returned because of being faulty, and after inspected is found to be in perfect order then carriage costs would be paid by the customer.

Please contact us for more information