What is a primer for cyanoacrylate glue ? It is a surface preparation product used before glue to improve adhesion on certain materials that are difficult to glue, notably plastics such as polypropylene (PP), polyethylene (PE) or PTFE.
Even an excellent SUPER GLUE Colle21 may encounter difficulties on these low surface energy plastics.
It is precisely for this reason that SUPER GLUE Colle21 offers PRIMER21, a primer specially designed to prepare the surface before applying cyanoacrylate glue.
What is a primer for cyanoacrylate glue used for?
A primer does not replace glue.
Its role is to chemically prepare the surface so that the cyanoacrylate glue can adhere better to materials that are naturally difficult to glue.
It is particularly useful on :
- the PP – polypropylene ;
- the PE – polyethylene ;
- the PTFE ;
- certain technical plastics with low surface energy.
Without a primer, a cyanoacrylate glue may seem to adhere at first, but the bond may lack strength or come off more easily.
The primer therefore creates better conditions to obtain more reliable bonding.
How to use PRIMER21 with SUPER GLUE Colle21 ?
Use is simple.
1. Clean and degrease the surface
The material must be clean, dry and free of dust or grease.
2. Apply a thin layer of PRIMER21
The product should only be applied to the area intended for bonding.
3. Let it dry for about 20-30 seconds.
4. Then apply your SUPER GLUE Colle21
Put the two pieces together and hold them while setting.
The primer is therefore used before the glue, and not after.
👉 Discover PRIMER21 Colle21 – Primer 30 ml for difficult plastics
Primer and activator : what's the difference?
Do not confuse primer and activator.
The primer prepares a difficult surface to improve glue adhesion.
Theactivator, it is mainly used to accelerate the polymerization and drying of cyanoacrylate glue.
In summary :
Primer = improve adhesion on a difficult material.
Activator = accelerate the setting of cyanoacrylate glue.
These are therefore two complementary products, but with completely different functions.
When should you use a primer?
You do not need to use a primer for each bond.
On many materials, a SUPER GLUE Colle21 can be used directly when surfaces are properly prepared.
The primer becomes particularly interesting when you have to bond a difficult plastic like PP, PE or PTFE, or when you notice that cyanoacrylate glue is difficult to adhere to the surface.
The right reflex is therefore to start with identify the material to be bonded before choosing your glue and the necessary complementary products.
Our customers’ opinions on SUPER GLUE COLLE21 ⭐⭐⭐⭐⭐
User satisfaction is also an important element in choosing a bonding solution.
SUPERGLUE COLLE21⭐⭐⭐⭐⭐ has more than 500 Google reviews, coming from individuals, modelers, craftsmen and professionals who use the products Colle21 for many applications.
This feedback also allows us to continue to develop a range that meets different expectations: precision, speed, transparency, viscosity, flexibility and ease of use.
If you like our service or our products, do not hesitate to leave us a reviews.
Your opinion is very important to us and helps us to improve and make our products and know-how known.
SUPER GLUE COLLE21: manufacturer of cyano glues and partner of professionals
Since 2012, SUPER GLUE COLLE21 develops and distributes a complete range of cyanoacrylate glues and professional adhesive solutions, intended for both individuals and professionals.
With more than 140 references, our range meets many applications: different viscosities of cyanoacrylates, flexible glues, gels, activators, primers and specialized bonding solutions.
👷♂️ Are you a professional or would you like to become a distributor of SUPER GLUE COLLE21?
Professionals can benefit from a dedicated catalog, of preferential rates and conditions, of a personalized support as well as the possibility of creating custom labels or in co-branding with their brand or brand.
We support many professions and sectors : bodywork, dental prosthesis, nail prosthesis, model making, DIY, repair, 3D printing, aquascaping, fishing, radio control, industry, decoration and specialized shops.
📩 Contact us to receive our professional catalog and discover the solutions SUPER GLUE COLLE21 adapted to your activity.
FAQ – What is a primer for cyanoacrylate glue?
What is a primer for cyanoacrylate glue used for?
A primer prepares certain difficult materials to improve the adhesion of the cyanoacrylate glue.
On which plastics should PRIMER21 be used?
PRIMER21 Colle21 is particularly intended for difficult-to-glue plastics such as PE, PP and PTFE.
Is primer a glue?
No. The primer prepares the surface. It is then necessary to apply a SUPER GLUE Colle21 to complete the assembly.
Should you put the primer before or after the glue?
The primer applies before cyanoacrylate glue. The surface is prepared, the primer dries, then the glue is applied.
What is the difference between primer and activator?
The primer improves adhesion on difficult surfaces, while theactivator accelerates setting cyanoacrylate glue.
Should you use a primer on all plastics?
No. It is mainly useful when the material has low natural adhesion, including PP, PE and PTFE.
Conclusion: why use a primer with SUPER GLUE Colle21 ?
So, what is a primer for cyanoacrylate glue?
It is simply a preparation product allowing cyanoacrylate glue to adhere better to certain difficult surfaces.
On plastics like PP, PE or PTFE, use PRIMER21 before your SUPER GLUE Colle21 can make all the difference between a difficult bond and a properly prepared bond.
The most important thing therefore remains to choose the right solution depending on the material: the good SUPER GLUE Colle21, the right viscosity and, when necessary, the right primer.
You can find the products SUPER GLUE Colle21 on our site as well as on the SUPER GLUE official store Colle21 on Amazon.
Let's stick together with SUPER GLUE Colle21 ! 🚀