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CT1 Adhesive Sealants and Alternatives Compared

What is a hybrid sealant & adhesive?

Tradesmen frequently use silicone sealants to finish joints, keep out moisture and fill seams and other gaps. Grab adhesives – probably the best known brand is Gripfill – are widely used to fix building materials in place with an instant, high strength bond that doesn’t require close contact between surfaces and works on wood, brick, stone, concrete, metal and many hard plastics.

Hybrid adhesives more than combine the best of both products into one tube; they outperform them. See our demonstration video to find how versatile they are.

Hybrid adhesives also give tradesmen a single product with multiple uses; this is more convenient and money isn’t wasted by having to discard part-used tubes that have hardened with infrequent use.

dura water

Which brand is best?

The construction industry now has a choice of hybrid adhesive/sealants. Most tradesmen have their favourite and most manufacturers are claiming their product is the best. But what is the truth?

We decided to cut through all the anecdotal evidence, powerful branding and aggressive selling, and look at what makes each product different.

To keep our research objective, we compared our DURA+ hybrid adhesive with two other mainstream products that most tradesmen would know and use: OB1 and CT1.

We should add a disclaimer here: we didn’t commission independent laboratory testing. All information has been gleaned from what each manufacturer says about their own product, on their own website.

CT1 compared with OB1, Dura Plus and Gripfill

Feature or Attribute is included or available. 

Feature or Attribute is NOT included or available. 

Has not been tested or information not available. 

OB1 Sealant

  • Chemical Resistance (Excellent)
  • Fungus/Mould Resistant
  • UV Resistant
  • Suitable for Outdoor Use
  • Seals & Bonds Underwater
  • Works in Salt Water
  • Vibration Resistant (Excellent)
  • Doesn't Crack After Curing
  • Food Safe Certified
  • Solvent Free
  • Isocyanate Free
  • Environmentally Compliant
  • No Shrinkage
  • Paintable
  • High Bond Strength
  • Colour Retention
  • Available in Black
  • Available in White
  • Available in Clear
  • Available in Grey
  • Available in Brown
  • Available in Anthracite
  • Available in Beige
  • Available in Oak
  • Available in Silver

CT1 Sealant

  • Chemical Resistance (Excellent)
  • Fungus/Mould Resistant (Moderate)
  • UV Resistant
  • Suitable for Outdoor Use
  • Seals & Bonds Underwater
  • Works in Salt Water
  • Vibration Resistant (Excellent)
  • Doesn't Crack After Curing
  • Food Safe Certified
  • Solvent Free
  • Isocyanate Free
  • Environmentally Compliant
  • No Shrinkage
  • Paintable
  • High Bond Strength
  • Colour Retention (Excellent)
  • Available in Black
  • Available in White
  • Available in Clear
  • Available in Grey
  • Available in Brown
  • Available in Anthracite
  • Available in Beige
  • Available in Oak
  • Available in Silver

DURA+ Sealant

  • Chemical Resistance (Excellent)
  • Fungus/Mould Resistant
  • UV Resistant
  • Suitable for Outdoor Use
  • Seals & Bonds Underwater
  • Works in Salt Water
  • Vibration Resistant
  • Doesn't Crack After Curing
  • Food Safe Certified
  • Solvent Free
  • Isocyanate Free
  • Environmentally Compliant
  • No Shrinkage
  • Paintable
  • High Bond Strength
  • Colour Retention
  • Available in Black
  • Available in White
  • Available in Clear
  • Available in Grey
  • Available in Brown
  • Available in Anthracite
  • Available in Beige
  • Available in Oak
  • Available in Silver

Gripfill

  • Chemical Resistance (Excellent)
  • Fungus/Mould Resistant
  • UV Resistant
  • Suitable for Outdoor Use (If Covered)
  • Seals & Bonds Underwater
  • Works in Salt Water
  • Vibration Resistant
  • Doesn't Crack After Curing
  • Food Safe Certified
  • Solvent Free
  • Isocyanate Free
  • Environmentally Compliant
  • No Shrinkage
  • Paintable
  • High Bond Strength
  • Colour Retention
  • Available in Black
  • Available in White
  • Available in Clear
  • Available in Grey
  • Available in Brown
  • Available in Anthracite
  • Available in Beige
  • Available in Oak
  • Available in Silver
 

How do They Perform?

All products are solvent-free, isocyanate-free, environmentally compliant and food safe certified.

All offer high bond strength, zero shrinkage and resistance to vibration, fungus, mould and UV (while some manufacturers claim ‘moderate’ or ‘excellent’ resistance this isn’t backed by measurable data).

All are suitable for indoor and outdoor use, will seal and bond under water and are suitable for use in saltwater applications. All can be painted with water-based formulations.

So, What is the Difference Between Brands?

We were starting to get desperate. Surely there must be something about these products that makes one or two stand out from the crowd and justify their brand popularity or price.

And then we found it. Choice of colour.

All three products offer the most popular colour choices – white, clear, grey, brown and black. CT1 offers four less popular, infrequently used colours – anthracite, beige, oak and silver.

Other than that, there appears to be little to choose between them. Apart from service quality.

At Maxam, we have built a reputation for personalised, friendly service that puts the customer first. We have been closely involved in public sector property repair and maintenance since 1971 and understand the requirements of local government, social housing, NHS and education sector contractors.

If you would like to discuss your hybrid adhesive needs or find out more about our full range of products, call our friendly, knowledgeable team on 0800 0922 923, send an email to sales@maxam.co.uk or send us an enquiry. Or if you’d rather, browse our website www.maxam.co.uk and call us when you’re ready to talk – we’re here to help!

Maxam
Dura+

The Best Choice for Service & Quality