West System Hardeners

Curing speed of the hardener

There are different hardeners depending on your needs (fast, slow, for coating and UV protection, extra slow). Choose your hardener according to the working time you will need for the project you are going to realize and according to your conditions / temperature constraints.

Open time and cure time

The choice of hardener is crucial in determining the open time and cure time. The open time determines the number of minutes available for mixing, application, smoothing, shaping, assembly. The cure time of the epoxy determines how long you have to wait before sanding or moving on to the next step in your project.

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  • Fast hardener 205

    Fast hardener 205

    <p>Hardener 205 is a medium viscosity epoxy, used in most cases <strong>to achieve a fast cure that produces an epoxy with rapid physical properties.</strong><br /><br />When mixed with resin 105, at a ratio of 5 parts resin to 1 part hardener 205, <strong>produces a very high strength rigid solid.</strong><br /><br />The resin/hardener mixture has excellent cohesive properties and provides outstanding water vapor protection with <strong>excellent adhesion and coating properties at low temperatures.</strong></p>
  • Slow hardener 206

    Slow hardener 206

    <p>206 Slow Hardener is a <strong>low-viscosity epoxy curing agent for use when extended working time or a longer cure time is needed.</strong></p> <p>It also provides adequate working time at higher shop temperatures.</p> <p>When combined with 105 Resin <span style="text-decoration:underline;">in a five-part epoxy resin to one-part hardener ratio</span>, <strong>the cured resin/206 Slow Hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and barrier coating properties.</strong></p> <p><span style="text-decoration:underline;">206 Slow Hardener is not intended for clear coating.</span></p>
  • Special coating hardener 207

    Special coating hardener 207

    <p style="font-size:14px;"><span style="color:#2d2d2d;">Special Coating Hardener 207 was developed for the application of fiberglass coatings and fabrics where an <strong>exceptionally clear, moisture-resistant natural wood finish</strong> is desired.</span></p> <p></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">Epoxy 105/207 has strong physical properties, so it can be used as a structural adhesive for bonding and laminating. It has excellent compatibility with paints and varnishes.</span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;"><span style="font-size:14px;">When mixed with 105 epoxy resin, 207 hardener will not yellow or become cloudy in wet conditions. The ultraviolet inhibitor in Special Clear Hardener 207 provides a beautiful, durable finish when used with a quality UV filtering varnish. The hardening of 105/207 is clear and colourless.</span></span></p> <p style="font-size:14px;"></p> <p style="font-size:14px;"><span style="color:#2d2d2d;"><span style="font-size:14px;">Professionals and beginners alike appreciate Special Clear Hardener 207 because it is reliable, easy to use, does not yellow and does not run off vertical surfaces. Three or more coats can be applied in one day without additional surface preparation. Boats can be built faster.</span></span></p> <p style="font-size:14px;"></p>
  • Extra slow hardener 209

    Extra slow hardener 209

    <p style="font-size:14px;"><span style="color:#2d2d2d;">Extra Slow Hardener 209 is formulated for use with Resin 105 for general coating and bonding applications in <strong>very hot and/or humid conditions</strong>, or <strong>where longer working times are required</strong> at room temperature. </span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">Mixture 105/209 offers about twice the pot life and working life of hardener 206.</span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">It forms a clear amber solid with excellent physical properties and resistance to moisture, making it suitable for adhesives, coatings and gypsum applications.</span></p> <p></p>
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WEST SYSTEM products

West System Hardeners

Curing speed of the hardener

There are different hardeners depending on your needs (fast, slow, for coating and UV protection, extra slow). Choose your hardener according to the working time you will need for the project you are going to realize and according to your conditions / temperature constraints.

Open time and cure time

The choice of hardener is crucial in determining the open time and cure time. The open time determines the number of minutes available for mixing, application, smoothing, shaping, assembly. The cure time of the epoxy determines how long you have to wait before sanding or moving on to the next step in your project.

Read more
  • Fast hardener 205

    Fast hardener 205

    <p>Hardener 205 is a medium viscosity epoxy, used in most cases <strong>to achieve a fast cure that produces an epoxy with rapid physical properties.</strong><br /><br />When mixed with resin 105, at a ratio of 5 parts resin to 1 part hardener 205, <strong>produces a very high strength rigid solid.</strong><br /><br />The resin/hardener mixture has excellent cohesive properties and provides outstanding water vapor protection with <strong>excellent adhesion and coating properties at low temperatures.</strong></p>
  • Slow hardener 206

    Slow hardener 206

    <p>206 Slow Hardener is a <strong>low-viscosity epoxy curing agent for use when extended working time or a longer cure time is needed.</strong></p> <p>It also provides adequate working time at higher shop temperatures.</p> <p>When combined with 105 Resin <span style="text-decoration:underline;">in a five-part epoxy resin to one-part hardener ratio</span>, <strong>the cured resin/206 Slow Hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and barrier coating properties.</strong></p> <p><span style="text-decoration:underline;">206 Slow Hardener is not intended for clear coating.</span></p>
  • Special coating hardener 207

    Special coating hardener 207

    <p style="font-size:14px;"><span style="color:#2d2d2d;">Special Coating Hardener 207 was developed for the application of fiberglass coatings and fabrics where an <strong>exceptionally clear, moisture-resistant natural wood finish</strong> is desired.</span></p> <p></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">Epoxy 105/207 has strong physical properties, so it can be used as a structural adhesive for bonding and laminating. It has excellent compatibility with paints and varnishes.</span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;"><span style="font-size:14px;">When mixed with 105 epoxy resin, 207 hardener will not yellow or become cloudy in wet conditions. The ultraviolet inhibitor in Special Clear Hardener 207 provides a beautiful, durable finish when used with a quality UV filtering varnish. The hardening of 105/207 is clear and colourless.</span></span></p> <p style="font-size:14px;"></p> <p style="font-size:14px;"><span style="color:#2d2d2d;"><span style="font-size:14px;">Professionals and beginners alike appreciate Special Clear Hardener 207 because it is reliable, easy to use, does not yellow and does not run off vertical surfaces. Three or more coats can be applied in one day without additional surface preparation. Boats can be built faster.</span></span></p> <p style="font-size:14px;"></p>
  • Extra slow hardener 209

    Extra slow hardener 209

    <p style="font-size:14px;"><span style="color:#2d2d2d;">Extra Slow Hardener 209 is formulated for use with Resin 105 for general coating and bonding applications in <strong>very hot and/or humid conditions</strong>, or <strong>where longer working times are required</strong> at room temperature. </span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">Mixture 105/209 offers about twice the pot life and working life of hardener 206.</span></p> <p style="font-size:14px;"><span style="color:#2d2d2d;">It forms a clear amber solid with excellent physical properties and resistance to moisture, making it suitable for adhesives, coatings and gypsum applications.</span></p> <p></p>
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Slow hardener 206. For longer curing time. Low viscosity. West System

Slow hardener 206. For longer curing time. Low viscosity. West System

(2 reviews)
€24.17 (VAT incl.)
In stock33 produit(s)
Slow Cure 206 is a low viscosity epoxy curing agent for extended working time and where a longer cure time is required. When combined with Epoxy 105, the cured resin/hardener mixture produces a rigid, high strength,...

Hardener for special coating 207. Application of fiberglass coatings and fabrics. Gluing and laminating. WEST SYSTEM.

Hardener for special coating 207. Application of fiberglass coatings and fabrics. Gluing and laminating. WEST SYSTEM.

€35.69 (VAT incl.)
In stock4 produit(s)
Special Clear Hardener 207 is developed for the application of fiberglass coatings and fabrics where a clear, moisture resistant, natural finish is desired. Epoxy 105/207 has strong physical properties, so it can be...

Fast hardener 205C. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 5Kg

Fast hardener 205C. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 5Kg

€212.94 (VAT incl.)
In stock5 produit(s)
WEST SYSTEM 205 Fast Hardener is a medium viscosity epoxy hardener. It is useful in most bonding situations, and at lower temperatures. The combination of 105 resin and 205 hardener provides excellent adhesion and...

Rapid hardener 205E. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 45kg

Rapid hardener 205E. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 45kg

€1,332.76 (VAT incl.)
On order. Delay of about 3 to 4 weeks.0 produit(s)
WEST SYSTEM 205 Fast Hardener is a medium viscosity epoxy hardener. It is useful in most bonding situations, and at lower temperatures. The combination of 105 resin and 205 hardener provides excellent adhesion and...

Fast hardener 205F. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 200Kg

Fast hardener 205F. For bonding and coating. To be used at low temperature. Medium viscosity. WEST SYSTEM. 200Kg

€5,642.09 (VAT incl.)
On order. Delay of about 3 to 4 weeks.0 produit(s)
WEST SYSTEM 205 Fast Hardener is a medium viscosity epoxy hardener. It is useful in most bonding situations, and at lower temperatures. The combination of 105 resin and 205 hardener provides excellent adhesion and...

206-E slow hardener. For longer curing time. Low viscosity. For 105-E resin. West System. 45Kg

206-E slow hardener. For longer curing time. Low viscosity. For 105-E resin. West System. 45Kg

€1,332.76 (VAT incl.)
On order. Delay of about 3 to 4 weeks.0 produit(s)
Slow Cure 206 is a low viscosity epoxy curing agent for extended working time and where a longer cure time is required. When combined with Epoxy 105, the cured resin/hardener mixture produces a rigid, high strength,...

206F slow hardener. For longer curing time. Low viscosity. For 105-F resin. West System. 200kg

206F slow hardener. For longer curing time. Low viscosity. For 105-F resin. West System. 200kg

€5,642.09 (VAT incl.)
On order. Delay of about 3 to 4 weeks.0 produit(s)
Slow Cure 206 is a low viscosity epoxy curing agent for extended working time and where a longer cure time is required. When combined with Epoxy 105, the cured resin/hardener mixture produces a rigid, high strength,...

Hardener for special coating 207B. Application of fiberglass coatings and fabrics. Gluing and laminating. 1,45Kg

Hardener for special coating 207B. Application of fiberglass coatings and fabrics. Gluing and laminating. 1,45Kg

(1 review)
€91.85 (VAT incl.)
In stock3 produit(s)
Special Clear Hardener 207 is developed for the application of fiberglass coatings and fabrics where a clear, moisture resistant, natural finish is desired. Epoxy 105/207 has strong physical properties, so it can be...

209C extra slow hardener. For coating and general bonding applications. WEST SYSTEM. 7,2Kg (2x3.6kg)

209C extra slow hardener. For coating and general bonding applications. WEST SYSTEM. 7,2Kg (2x3.6kg)

(1 review)
€426.82 (VAT incl.)
In stock2 produit(s)
Extra slow hardener 209 used for coating and general bonding applications in extreme heat and/or humidity conditions (tropical climate) Not intended for transparent coating For use with 105C epoxy resin Sold without...

Hardener for special coating 207C. Application of fiberglass coatings and fabrics. Gluing and laminating. 7,2Kg

Hardener for special coating 207C. Application of fiberglass coatings and fabrics. Gluing and laminating. 7,2Kg

€263.47 (VAT incl.)
In stock3 produit(s)
Special Clear Hardener 207 is developed for the application of fiberglass coatings and fabrics where a clear, moisture resistant, natural finish is desired. Epoxy 105/207 has strong physical properties, so it can be...

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