Stock & Raw Materials Insurance (Wool, Synthetic Fibres, Dyes): A Practical UK Guide

Introduction

If you manufacture, process, store, or distribute textiles, your stock is often your biggest day-to-day exposure. Wool bales, synthetic fibre reels, dye powders and liquids, and finished fabric can represent months of cash tied up in materials. A single incident—fire, flood, theft, contamination, power failure, or a supplier issue—can wipe out stock and stall production.

Stock & Raw Materials Insurance is usually arranged as part of a Commercial Combined or Material Damage policy. The goal is simple: if insured stock is damaged or lost by an insured event, the policy pays to put you back in the position you were in before the loss.

This guide explains how cover works for wool, synthetic fibres and dyes, what insurers look for, and how to set sums insured and conditions so a claim is paid smoothly.

What “stock & raw materials” typically includes

Definitions vary by insurer, but stock and raw materials often include:

• Raw materials: wool bales, tops, slivers, synthetic staple fibre, filament yarn, pellets, resins, additives.
• Chemicals and dyes: dye powders, liquid dyes, pigments, auxiliaries, solvents, fixatives, finishing chemicals.
• Work in progress (WIP): part-processed fibres, yarn on beams, fabric on rolls, items in dyeing/finishing.
• Finished goods: packaged yarn, fabric, garments, technical textiles.
• Packaging and consumables: cartons, cones, pallets, labels (sometimes limited).

It’s important to clarify whether WIP is included and whether chemicals are treated as stock, hazardous goods, or excluded unless declared.

Common policy structures (and where stock cover sits)

Most textile businesses arrange stock cover inside one of these:

• Commercial Combined: property damage, stock, business interruption, liability, sometimes goods in transit.
• Property / Material Damage: buildings, contents, plant, machinery, and stock.
• Warehousekeepers / Storage risks (if you store for others): your own stock plus customers’ goods (bailee’s liability).

Stock cover is then shaped by:

• The insured perils (e.g., fire, flood, theft) or all risks
• The sum insured (maximum payout) and any sub-limits.
• The basis of settlement (how value is calculated).
• Conditions around security, housekeeping, and storage.

Key risks for wool, synthetic fibres and dyes

1) Fire and smoke damage

Textile stock can be highly combustible. Even where materials are not easily ignited, smoke and soot can ruin stock quickly.

Insurers will focus on:

• ignition sources (hot works, electrical, heaters)
• dust and lint build-up
• storage height and aisle spacing
• sprinkler protection and maintenance

2) Water damage and flood

Flooding can destroy bales and rolls, and water can cause staining, shrinkage, mould, and dye migration. Even a small leak can create a large loss if stock is stored on the floor.

3) Theft and malicious damage

High-value fibres and dyes can be targeted, especially where stock is easy to move or resell. Theft cover often depends on:

• alarm type and monitoring
• locks and physical security
• CCTV and lighting
• stock location (ground floor, yard, external storage)

4) Contamination and spoilage

For wool and fibres, contamination can come from:

• oils, grease, dust, pests
• moisture leading to mould
• cross-contamination between fibre types

For dyes and chemicals, contamination can arise from:

• incorrect storage temperatures
• damaged containers
• incompatible chemicals stored together
• poor segregation and labelling

Some policies provide limited cover for contamination following an insured peril; others exclude it unless specifically endorsed.

5) Temperature and humidity issues

Many dyes and auxiliaries have storage requirements. If a heating failure or extreme temperature causes deterioration, standard property policies may not respond unless the cause is an insured peril.

6) Transit and off-site storage

If stock moves between sites or to subcontractors (spinners, dyers, finishers), you may need:

• Goods in Transit cover
• Stock at third-party premises extensions

Without these, you can be uninsured at the exact moment your materials are most exposed.

“All risks” vs “specified perils” for stock

Specified perils

Covers only listed events (commonly fire, lightning, explosion, storm, flood, escape of water, impact, theft with forcible entry). It can be cost-effective but may leave gaps.

All risks

Covers accidental loss or damage unless excluded. This is often preferred for stock-heavy businesses, but exclusions still matter—especially around:

• gradual deterioration
• inherent vice (the item’s own tendency to spoil)
• vermin/insects
• wear and tear
• pollution

A broker should check how the wording treats contamination, dye migration, and moisture-related damage.

How insurers value stock (basis of settlement)

This is one of the most important parts of the policy.

Common settlement bases include:

• Cost price: what you paid for the raw materials.
• Replacement cost: what it costs to replace at today’s prices (often better during price spikes).
• Selling price / finished stock: may include an element of profit, but needs careful wording.
• Manufacturing cost for WIP: raw materials plus labour and a portion of overhead.

For wool and synthetic fibres, prices can move quickly due to commodity shifts, shipping costs, and supply constraints. If your sum insured is based on last year’s average, you can be underinsured when you need the policy most.

Setting the right sum insured (and avoiding underinsurance)

Underinsurance can trigger the average clause, reducing claim payments proportionally.

To set an accurate sum insured:

• Use the maximum value on site at any one time, not the average.
• Include seasonal peaks (e.g., pre-production buying, customer demand cycles).
• Include import duties, freight, and handling if you’d pay them again.
• Consider whether you need separate sums for:

• raw materials
• WIP
• finished goods
• dyes/chemicals

If your stock fluctuates heavily, ask about:

• Declaration-linked stock (you declare values monthly/quarterly)
• stock increase / seasonal uplift clauses

Dyes and chemicals: special considerations

Dyes and auxiliaries can trigger extra underwriting questions because they may be:

• flammable (solvents)
• oxidising or reactive
• environmentally hazardous
• stored in IBCs or drums that can leak

Expect insurers to ask for:

• Safety Data Sheets (SDS)
• COSHH assessments
• bunding and spill containment
• segregation of incompatible chemicals
• ventilation and ignition control

If you use or store solvents, you may need to confirm compliance with relevant UK guidance and fire safety controls.

Storage and housekeeping: what insurers want to see

Good storage reduces losses and makes claims easier.

Typical best practice includes:

• Stock stored on racking or pallets, not directly on floors.
• Clear aisles and access for fire-fighting.
• Segregation of raw materials from finished goods and from chemicals.
• Dust and lint control, with documented cleaning schedules.
• Regular electrical inspection and maintenance.
• Hot works permits and contractor controls.
• Pest control contracts where appropriate.

If you have sprinklers, insurers will want evidence of:

• inspection and test records
• water supply reliability
• impairment procedures (what you do if sprinklers are offline)

Business interruption: the cover many firms forget

Stock insurance pays for the physical loss. But if you can’t trade, you can still lose money.

Business interruption (BI) can cover:

• lost gross profit while production is interrupted
• increased cost of working (e.g., outsourcing, overtime, expedited shipping)

For textile manufacturing, BI is often driven by:

• lead times to replace wool/fibres
• dye availability
• machine downtime
• customer penalties and cancelled orders

Your BI indemnity period (e.g., 12, 18, 24 months) should match realistic recovery time, not best-case assumptions.

Common exclusions and claim pitfalls

Even with “all risks”, claims can fail due to wording or conditions. Common issues include:

• Stock stored outside or in temporary structures not declared.
• Theft without evidence of forcible/violent entry.
• Water damage from gradual leaks (maintenance-related).
• Deterioration due to humidity/temperature without an insured trigger.
• Incorrect sums insured leading to average.
• Poor records of stock quantities and values.

A strong stock control system (ERP, regular counts, batch tracking) can be the difference between a smooth claim and a dispute.

What information you’ll need for a quote

To arrange stock and raw materials cover, expect to provide:

• business description and processes (spinning, weaving, dyeing, finishing, warehousing)
• full address and construction details
• security details (alarms, CCTV, access control)
• fire protection (sprinklers, extinguishers, fire doors)
• storage method and maximum stack heights
• stock split (raw/WIP/finished; dyes/chemicals)
• maximum values on site and at third-party locations
• claims history

The more precise you are, the more accurately the insurer can price the risk—and the fewer surprises you’ll face at claim stage.

Practical steps to reduce risk (and often premiums)

Insurers like to see proactive risk management. Consider:

• Improve housekeeping and document cleaning routines.
• Keep dyes/chemicals in bunded areas with clear segregation.
• Raise stock off floors and protect against leaks.
• Add water leak detection in high-risk areas.
• Review electrical inspection schedules (including portable appliance testing where relevant).
• Tighten access control and improve perimeter security.
• Create an incident response plan for spills, water ingress, and fire.

Small improvements can materially change underwriting terms.

FAQs

Is stock covered while it’s at a subcontractor’s premises?

Not automatically. You may need a stock at third-party premises extension or a separate policy. Always disclose where stock goes and the maximum values.

Are dyes covered if they leak and contaminate other stock?

It depends on the wording. Some policies cover resulting damage from an insured peril but exclude gradual leakage or pollution. This is an area to check carefully.

Do I need separate cover for goods in transit?

Often, yes. Property policies typically cover stock at insured premises. If you move wool, fibres, or dyes between sites, you’ll usually need goods in transit.

What if my stock values change month to month?

Ask about declaration-linked stock or seasonal increases. Otherwise, set the sum insured to your peak value.

Does stock insurance cover price increases after a loss?

If the basis is replacement cost, you’re better protected. If it’s cost price, you may not recover the full cost to replace at today’s prices.

Next steps

Stock and raw materials insurance is not just a tick-box. For wool, synthetic fibres and dyes, the details matter: how you store materials, how you track values, where stock goes off-site, and how the policy defines contamination and settlement.

If you want a quick review, prepare a simple stock summary (peak values, locations, and split between raw/WIP/finished/chemicals) and your current policy schedule. We can then identify gaps, tighten wording, and make sure you’re properly protected.

Talk to Insure24 to discuss Stock & Raw Materials Insurance for textile and materials businesses. Call 0330 127 2333 or request a quote via insure24.co.uk.