Frequently Asked Questions

What are the shipping times?

Packages are usually shipped within 3 days after receipt of payment and sent by courier.

Returns of orders

In the event that one or more of our products proves to be non-compliant with the description, it may be returned within 14 days from the day of receipt, with shipping costs charged to the customer.
Before shipping, please contact customer service at
Sealed products that can no longer be returned once opened.

What is colle21?

Colle21 is an anaerobic Super Glue based on cyanoacrylate, it is not instantaneous but must be kept under continuous pressure for 10/15 sec to allow total adherence.

How to store Colle21

Colle21 should be stored at room temperature.
Optimal temperature between 16  and 17 degrees.
Do not keep it in the fridge, near heat sources or lamps that develop too much heat.

What’s the difference between liquid glue and gel?

The liquid glue Colle21 is ideal for all types of fast gluing and paste in just 15 seconds.
The Gel is ideal for application on vertical surfaces even if a little slower to glue.

What’s and how to use the Activator21?

Activator21 is a spray activator used in combination with Colle21. It makes possible to gently and firmly join small sensitive parts without exercising too much pressure. The activator also speeds up the drying of Colle21 cyanoacrylate.

The Activator can be applied in two different ways:
Before glueing: apply the Activator on one of the two objects/pieces you want to be glued, and wait until the spray evaporates. Apply Colle21 on the other object/piece, quickly join the surfaces and wait for the glue to dry.
After glueing: apply Colle21 super glue one of the objects/pieces join the surfaces, then spray the Activator21 on the joint and wait for the glue to dry .
Activator21 is transparent and does not leave signs on the treated surface. Use the spray 30 cm from the surface to keep it smooth. Can only be applied by using a suitable air spray valve
– Once opened use quickly –


What’s and how to use the Magicdust21?

Magicdust21 is perfect to fill holes and cracks and strengthen the adherence of two pieces

How to use the filler:
Join the 2 parts to be assembled.
Apply a drop of Colle21 Super Glue on the surface.
Pour the Magicdust21 powder on the fissure. Repeat if necessary.
Once finished, you can sand and paint the assembly for a nice finishing touch.

The combined use of Colle21 Super Glue and Magicdust21 is deal for every DIY application, model building, restoration and repairs on a variety of materials.

Use a sanding file to prepare the surfaces before glueing

How to prepare the surfaces

Before each gluing it is advisable to prepare the surface to be glued with our Lime21 in order to make the parts to be glued clean and rough allowing Colle21 a perfect adherence.

How to remove the glue from hands

It is advisable to remove the glue residues from the hands by washing them with warm water and soap.
For more resistant points, just use a little acetone.

Business and Partnerships

Thank You for your interest in Colle21! For Business enquiries or partnership proposals, please feel free to contact us through this form here


Blog & Tutorials



It is with great pleasure that I had the honor of interviewing you today; Kevin D 'Alenti excellent model maker recognized in the world of modeling and consumer of Colle 21 products. Kevin D'Alentiwas born in Belgium with Italian origin. The passion for modeling was...

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Vincenzo Lanna By Colle 21

With great pleasure today I had the honor of interviewing for you Vincenzo Lanna, an excellent model maker, well known in the modeling world, as well as being a great consumer of products Colle 21. Vincenzo Lanna was born fifty-four years ago in Naples, for over forty...

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Ferrari 126 C2 turbo By Gennaro Zappa

I interviewed for you Gennaro, one of Colle21's first customers, since his debut he has grown fond of my company and my products. Today, after almost 8 years of activity, a true friendship was born between Colle21 and Master Gennaro Zappa. a real Italien, precisely...

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