Industrial Adhesives & Sealants

Applicable Standard: Regulated under KEBS requirements and the GHS chemical classification framework; no single Kenya Standard covers all adhesive and sealant chemistries, so conformity is assessed against the relevant product-specific performance criteria plus UN transport classification for solvent-based formulations.

Industrial adhesives and sealants is a category defined by chemical diversity rather than a shared specification — solvent-based contact adhesives, two-component epoxy and polyurethane structural adhesives, single-component silicone and polyurethane sealants, and cyanoacrylate (“instant”) adhesives are all sold through the same commercial channels but have almost nothing in common at the hazard-assessment level. A solvent-based contact adhesive is fundamentally a flammable-liquid compliance problem, similar in profile to an industrial solvent. A two-component epoxy or polyurethane system is fundamentally a reactive-chemistry problem, where the resin and hardener (or the polyol and isocyanate) carry entirely different, sometimes opposite, hazard profiles and need to be documented separately. Treating “adhesive” as one product category with one compliance checklist is the most common structural mistake we see importers make before they even get to the specific defects below. Construction and assembly-line buyers in this category are also unusually sensitive to shelf-life integrity, since several of these chemistries — moisture-cure polyurethanes, cyanoacrylates, and some two-part epoxies — degrade or partially cure in the container if temperature and humidity control during a long sea transit weren’t accounted for at the point of packaging, which turns an ordinary shipping delay into a product-quality problem in a way that most other chemical categories in this catalog don’t experience.

Why This Category Gets Flagged

The most frequent issue is solvent-based contact adhesive shipped with no flammability or UN transport classification at all — these products are frequently Class 3 dangerous goods in exactly the same way industrial thinners are, but because they’re marketed as “adhesive” rather than “solvent,” the hazmat paperwork that would automatically accompany a drum of thinner is often simply never prepared. The second recurring issue is a missing isocyanate hazard declaration on polyurethane adhesives and sealants — free isocyanate monomer is a recognized respiratory sensitizer, and GHS requires specific hazard statements (H334, may cause allergy or asthma symptoms if inhaled; H335, may cause respiratory irritation) that generic sealant labeling routinely omits, exposing downstream users to a real occupational-health hazard the label doesn’t warn them about. Third, two-component epoxy kits frequently ship with a single combined Safety Data Sheet, or none at all, when the resin and hardener components genuinely need separate SDS documents because their hazard classifications, and in some cases their handling and disposal requirements, differ meaningfully from one another. A fourth issue, less about hazard classification and more about basic product integrity, is shelf-life and cure-stability failure caused by inadequate transit conditions — moisture-cure polyurethane sealants that partially cure inside an unopened cartridge after a humid transit, or cyanoacrylate adhesives that lose bond strength after prolonged heat exposure, arrive technically within their printed expiry date but already compromised in a way that only shows up when the buyer tries to use them.

Test Parameters

Labeling Requirements

Each component of a multi-part system must carry its own GHS pictograms and hazard statements appropriate to its actual chemistry — flammable-liquid labeling for solvent-based products, sensitizer labeling for isocyanate-containing polyurethanes, and corrosive or irritant labeling where the hardener component of an epoxy system warrants it. Mixing ratios, working (open) time, and full cure time must be stated clearly enough to be usable on a job site rather than buried in a separate technical bulletin, and ventilation warnings are expected wherever solvent or isocyanate exposure is a realistic handling risk. Batch or lot number, shelf life, and a clear “for industrial use only” restriction where the product isn’t formulated or tested for consumer/DIY handling round out the required label content. For moisture- or temperature-sensitive chemistries, the label or accompanying documentation should also specify the storage conditions the product needs to maintain its stated shelf life, since a generic “store in a cool dry place” instruction is rarely precise enough to protect a moisture-cure system through an extended tropical transit.

Packaging & Documentation

Typical Gaps We Find

A single SDS covering an entire two-component epoxy kit, when the resin and hardener actually need separate documents, is the most common documentation gap we see in this category — it looks complete at a glance and is exactly the kind of shortcut that only surfaces once a workplace safety inspection or an incident forces a closer look. Missing isocyanate hazard labeling on polyurethane sealants is the second consistent finding, usually because the product is marketed and packaged as a general-purpose sealant with no chemistry-specific hazard review behind the label copy. Absent flash point data and UN classification on solvent-based contact adhesives rounds out the pattern, mirroring almost exactly the gap we see on the standalone-solvent side of the paints and solvents category — the underlying lesson in both cases is that a product’s commercial name rarely tells you what regulatory category its actual chemistry belongs to. Storage-and-transit degradation of moisture- or heat-sensitive adhesive chemistries is a fourth, quieter finding — it doesn’t show up as a customs hold, but as a buyer complaint weeks after delivery, once a cartridge that looked fine on arrival turns out to have already lost the working time or bond strength its data sheet promised.