---
title: "Intumescent paint of steel work, and fire retardancy"
ocid: "ocds-h6vhtk-05d39f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d39f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d39f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d39f.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED"
published: "2025-10-24"
---

# Intumescent paint of steel work, and fire retardancy

Buyer: UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED  
Current stage: Planning  
OCID: ocds-h6vhtk-05d39f

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## Summary

The procurement process initiated by the United Kingdom National Nuclear Laboratory Limited focuses on the application of intumescent paint for fire protection, particularly to assess and recommend products for maintaining the structural integrity of steelwork during a fire outbreak. The procurement falls under the 'works' industry category and spans the region of the United Kingdom, particularly at the Sellafield site in Cumbria. As of October 2025, the process is in its planning stage, with an engagement session scheduled for contractors in November 2025 and a due date of 1st December 2025 to finalise proposals. The procurement method involves preliminary market engagement, highlighted in a market engagement notice published on Find a Tender.

This tender presents a substantial opportunity for businesses specialising in protective coatings and fire retardancy. SMEs are encouraged to compete, given the suitability criteria of the lot. Companies with expertise in innovative fire protection solutions and experience with regulatory compliance in construction environments will find this opportunity particularly advantageous. The work is scheduled to commence in August 2026, providing ample time to strategise and align resources for companies aiming to expand their portfolios in public-sector contracts and improve their presence in the nuclear and public infrastructure industries.

## Notice

The requirement is to assess and propose commercial available products and processes to remedy deterioration of the physical fire protection barriers which maintain integrity of structural steel work in the event of an outbreak of fire.

### Planning Information

Engagement session includes details of works to assess.
Interested contractors will be escorted to view indicative areas of site, which require remediation works.
Contractors are expected to provide a written assessment detailing proposals to remedy
UKNNL survey details and supporting information will be provided during the site visit
All contractor personnel attending site will require BPSS clearance
Site location : United Kingdom National Nuclear Laboratory
Central Laboratory
Sellafield 
Seascale
Cumbria
CA20 1PG
Dates of site visit : to be confirmed November 2025

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/068305-2025 |
| Notice type | UK2 - Preliminary Market Engagement Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 24 Oct 2025 |
| Submission deadline | Not specified |
| Future notice date | 1 Dec 2025 |
| Award date | Not specified |
| Contract period | 2 Aug 2026 - 1 Aug 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planning |
| Lots status | Planning |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6AE |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45442000 - Application work of protective coatings

## Release History

- 24 Oct 2025 at 14:57 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/068305-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/068305-2025
  24th October 2025 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- http://www.uknnl.com
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d39f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d39f.json.