Dethlac Silverfish Killer Spray 250ml

From £14.76

  • Highly Effective Against Silverfish
  • Can Be Used Indoors And Outdoors
  • Trusted Product For Over 50 Years
  • Creates Barrier That Remains Active For Months

Why Choose Us?

  • Done Next Working Day Delivery
  • Done Expert Help & Advice
  • Done Secure Payments


Dethlac Silverfish Killer Spray is a highly effective insecticidal lacquer which has been trusted by amateurs and professionals across the industry for over 50 years.

When applied it leaves behind a hard clear film which kills any Silverfish that encounter it for months after.

This spray can be used indoors and outdoors and can be applied on any non-absorbent surface e.g. doors, windows, skirting boards, etc.

We recommend not applying it to UPVC window frames.

Contains Deltamethrin and Pyrethrins.

How to use

  • Shake can well before use
  • To create a barrier, spray a band 7 cm – 10 cm wide in 5 second bursts at a distance of 20 cm.
  • If silverfish are hiding out of reach you can spray directly into cracks and crevices.
  • When applying keep children and pets away from residue till dry.

Safety data

Dethlac Insecticidal Lacquer has been approved under The Control of Pesticides Regulations – HSE 9708

Click here for Safety Data Sheet





UK Mainland

DPD Next Working Day

£6.00 (FREE on orders over £75.00)

Scottish Highlands

DPD 2 Day Service


Scottish Islands, Isle of Man, Scilly and Channel

DPD 2 Day Service


Isle of Wight

DPD 2 Day Service


Northern Ireland and Eire

DPD 2 Day Service


Please Note:

Orders placed Monday to Thursday before 3.45pm, or Friday before 1.45pm will be despatched that day.

Orders placed on a Friday after 2pm or over the weekend will be dispatched the following Monday, unless that Monday is a bank holiday.

We do not offer Saturday delivery.  Collection is possible by arrangement.

We also deliver internationally. Please contact us for a delivery quotation price before ordering. View our full delivery policy here


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