Dethlac Is Back – Relaunched in 2025 with an Improved Formula

Discontinued in 2024 and now back by popular demand, Dethlac Insecticidal Lacquer returns in 2025 with an enhanced formula. Trusted by professionals and homeowners alike since 1959, Dethlac now offers the same long-lasting, weatherproof protection—revamped for today’s pest control needs.

Key Benefits:

• ✔ Effective Insect Control - Kills ants, cockroaches, woodlice and other crawling insects on contact.
• ✔ Long-Lasting Protection - Once dry, the clear lacquer remains active for months, delivering continuous insect control.
• ✔ Dual-Active Formula - Contains Deltamethrin (0.02%) and Pyrethrins (0.08%) for fast knockdown and extended residual activity.
• ✔ Weatherproof Coating - Ideal for high-traffic areas or outdoor use; remains effective even after rain or surface washing.
• ✔ No Visible Residue - Dries to a non-staining, clear finish that blends seamlessly with treated surfaces.
• ✔ HSE Approved - Registered under HSE No. 6891. Approved for both professional pest controllers and amateur users.

Ideal for Pest Control Professionals & Homeowners

Dethlac is trusted by pest control operators for its convenience, reliability and lasting results. Unlike typical insect sprays, this lacquer-based treatment continues to work long after application, making it a smart choice for integrated pest management.

Why pest controllers choose Dethlac:

• Excellent for long-term insect control in sensitive or hard-to-reach areas
• Supports IPM (Integrated Pest Management) strategies by reducing the need for frequent reapplications
• Ideal for entry points, skirting boards, doorways, patios, sheds and garages
• Discreet and efficient solution

Whether you’re tackling persistent crawling insect issues or delivering preventative treatments, Dethlac delivers visible results and lasting peace of mind.

How to Apply Dethlac Insecticide:

1. Shake well before use to activate the formula.
2. Spray directly onto non-absorbent such as skirting boards, door frames, window ledges, and patios.
3. Apply in short bursts (1–5 seconds) from 15–23cm away, covering bands approximately 8–15cm wide.
4. Allow to dry completely before allowing people or pets to re-enter the treated area.
5. Reapply only when necessary the lacquer remains effective for months but may need refreshing after heavy wear or abrasive cleaning.

⚠️ Avoid using on absorbent materials like carpets, wallpaper or unfinished wood.
⚠️ Do not spray directly on insects – treat the surfaces they crawl across.

Frequently Asked Questions

How quickly does Dethlac work?

After drying, insects that make contact with treated areas are typically killed within a few hours. The formula works through surface contact, so direct spraying isn’t necessary.

Is it suitable for outdoor use?

Yes – Dethlac’s lacquer is waterproof once dry, making it ideal for use on patios, doorsteps, garages, and external entry points.

Is Dethlac safe around children and pets?

Dethlac should always be used as directed. We recommend keeping children and pets away during application, and only allowing them back into the area once the surface is completely dry.

What surfaces can I use it on?

It should be applied only to hard, non-absorbent surfaces like metal, painted wood, plastic, tile, or concrete. Avoid fabrics and porous materials.

What pests does Dethlac kill?

It’s effective against a wide range of crawling insects including ants, cockroaches, woodlice and more.

Related Products:

Expand your pest control arsenal with these complementary solutions, designed to enhance your professional treatments:

1. Vazor RTU – A ready-to-use, insecticide-free spray that offers rapid knockdown of ants, fleas, bed bugs and other pests, ideal for sensitive areas and professional leave-behinds.
2. Vazor Ice – Instantly freezes crawling and flying insects on contact using cold technology, with no chemicals or residue left behind.
3. Aerosol Trigger Attachment – Makes applying aerosol products like Dethlac easier and safer, offering precise control and reducing chemical exposure.