Passive Fire Protection (Intumescent Products)


Acorn Spencer is a fully approved and appointed distributor for Envirograf Intumescent Products


Acorn Spencer offers a full survey, specification, scheduling and sales service for passive fire protection for new, existing, listed and re-furb projects.


With over 20 years experience in the Intumescent, Architectural Ironmongery Industry and with a fully qualified Architectural Ironmonger on board we have access to a wealth of experience in providing a high level of professionalism in specifications, recommendations and quotations.


The Envirograf range of over 130 Intumescent products will offer a solution to virtually any situation using any of the standard products. If a standard item is not suitable for an application then bespoke items can be made to order. Literature, Test Evidence and COSH details are available on request for the product specified. Literature is also available to view on the Envirograf website.


Upgrading, Refurbishments and Conversions


The upgrading products for listed buildings include a very successful range of products, providing various fire ratings to a variety of materials including doors, timber cladding, plasterboard and lathe and plaster. Acorn Spencer Ltd can provide a survey for listed building projects to ascertain the correct system for the requirements of the project. A full survey report and product recommendation will be provided. Due to the complexities and amount of work involved in the door upgrade surveys there is usually a charge for this.



Door upgrading is a large part of the passive fire business. If an existing house has a loft conversion then the doors, and sometimes the walls and ceilings along the escape route, need to be upgraded for fire regulations. It is not necessary to replace your existing doors for fire door blanks. 99.99% of the time the existing doors can be upgraded. A survey can be carried out to ensure the existing doors can be upgraded, then the suitable materials will be specified, scheduled and priced. There are various options to upgrade the doors – varnish, paint, membrane and veneers. Also Hinges, Intumescent Fire & Smoke Seals and other ironmongery can be included in the specification.



At Acorn Spencer Plans are in place to shortly be able to provide a full supply and installation service for upgrading doors and other fire stopping requirements.



Electrical Market


Envirograf manufacture many products specifically designed for the electrical market, including Covers for Downlighters, Gaskets for Electrical Sockets and Switches, Pillows for Cable Trays and Trunking. A full colour brochure is available on request or visit the Envirograf website.


Envirograf Product Range includes:
Paints and Varnishes for Timber Doors

Electrical Penetrations and Fittings

Under Floor and Roof Barriers

General Fire Stopping Products

Intumescent Fire and Smoke Seals, Draught Seals and Acoustic Seals

Paints for Steel, Plasterboard, Lathe and Plaster


If required Acorn Spencer can provide Intumescent Products from other sources including Lorient, Sealmaster, & Astro Flame.

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