Acrylic Adhesive

A structural acrylic adhesive has a precise place between epoxy and cyanoacrylate: it builds strength within minutes, not hours, and it tolerates surfaces that an epoxy would reject.

The reference in the catalogue

Dagobert Industrie stocks Penloc GTI acrylic adhesive. See also our two-component acrylic adhesives, our epoxy adhesives and all our industrial adhesives.

Its decisive advantage: surface preparation

An epoxy requires a perfectly degreased and usually abraded substrate. Every missed step is paid for later by debonding.

A structural acrylic tolerates less well prepared surfaces, including lightly oiled ones. On metal parts straight from machining, still covered with a film of lubricant, this removes a whole cleaning operation. On a production line, it is often what decides the choice.

Speed versus final strength

Acrylic reaches handling strength within minutes, which frees the workstation. Its final strength generally stays below that of a good quality structural epoxy.

The choice is therefore made on the real load on the assembly, not on the highest figure in the table. A joint that carries little load but must leave the workshop within the hour calls for an acrylic; a highly loaded joint calls for an epoxy.

The smell, and what it implies

Structural acrylics have a strong, lingering smell due to their monomers. It is not a comfort detail: it requires real ventilation of the workstation, and it can be a deal breaker on an assembly intended for an enclosed space or a product that will be packed shortly afterwards.

Two-component, and therefore mixing

As with any two-component reactive adhesive, the ratio is not a guideline. An excess of one of the two does not cure faster, it leaves unreacted molecules in the joint and lowers final strength. Cartridges with a mixing nozzle remove this risk and save time.

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Comment choisir sa colle mono-composante

  • La chimie

    Polyuréthane pour le bois et les matériaux poreux, époxy mono-composant pour une haute résistance, généralement avec polymérisation à chaud, acrylique pour certains assemblages rapides.

  • Le mode de prise

    Selon la référence, la prise se fait à l'humidité de l'air, à la chaleur ou par séchage : vérifiez les conditions sur la fiche produit.

  • Les matériaux

    Vérifiez la compatibilité avec les matériaux à assembler et les contraintes que subira l'assemblage.

Questions fréquentes

Quel avantage par rapport au bi-composant ?

Aucun mélange n'est nécessaire : la colle s'applique directement, sans risque d'erreur de dosage.

Comment conserver une colle mono-composante ?

Fermée hermétiquement, au frais et au sec, en respectant la date de péremption et les conditions indiquées sur la fiche produit.

La colle polyuréthane gonfle-t-elle ?

Certaines colles polyuréthane moussent légèrement en réagissant avec l'humidité : maintenez les pièces serrées pendant la prise.

Puis-je obtenir un prix pour une grosse quantité ?

Oui. Avec un compte pro, vous bénéficiez de 5% de remise sur tout le catalogue. Pour des volumes importants, demandez un devis depuis votre espace pro ou contactez notre équipe.