Wood Glue Guide
Cascamite vs PVA Wood Glue: Which Should You Use?
Cascamite vs PVA wood glue is a common comparison for trades who are creating products with wood and need the best adhesive for wood. So, which is best? Unfortunately, it is not quite as simple as one being better than the other, because it depends on what you are wanting to achieve.
The challenge
Many tradesmen who work with wood are familiar with the adhesive “Cascamite” (sometimes spelt “Cascomite”). But what actually is it, and is it the same as One Shot?
Quick answer
For the strongest glue for wood in demanding woodworking, veneering, laminating and joint bonding applications, a Cascamite or One Shot adhesive is often the better choice. For a good glue for wood that is simple, water based and ready to use, PVA is often more convenient.
Why Choosing the Right Wood Glue Matters
The best adhesive for wood is not always the same product for every job. Both Cascamite-type One Shot adhesives and PVA wood adhesives are designed for bonding wood and timber, but they perform differently and are used in different ways.
Some applications need a tough, non-creep glue line. Others need a simple, single-component adhesive that is easy to apply and easy to clean down. That is why the right choice depends on the application, the working method and the bond performance needed.
What Is Cascamite Wood Glue?
“Cascamite” is a brand name used for a powder urea formaldehyde resin adhesive, and it became synonymous with any adhesive which met this specification, i.e. a one component powder urea formaldehyde resin.
In recent times, they have become more commonly known as a “One Shot” adhesive. These adhesives are commonly used in wood working application for veneering, laminating and joint bonding.
What Is a PVA Wood Glue?
PVA adhesives, such as Woodstikk® D3 PVA, are water based adhesives based on Poly Vinyl Acetate (PVA).
As they are one component, meaning no mixing required, and water based, they are relatively safe and simple to use as PVA wood adhesives.
Best Glue for Woodworking: Cascamite One Shot vs PVA
There are a number of differences between the two types of adhesive, even though they are both designed for bonding wood and timber. Below we outline some of the key differences between them in terms of performance and how they are used, and for what reasons you should use each type.
One Shot / Cascamite
Tough, non-creep bonding
By adding water to the stated mix ratio, an excellent adhesive is created which bonds wood exceptionally well. In comparison to PVA adhesives, these One Shot adhesives are tough, and do not creep.
PVA
Ready-to-use convenience
PVA’s are easy to use as the most common grades are single component, so no mixing is required. They are water based so it is easy to clean down overspill.
Best Adhesive for Wood to Wood: When to Choose One Shot
One Shot adhesives are ideal for the smaller user as if they are kept dry and in a cool environment, the shelf life is excellent. PVA’s have shorter shelf lives so will lose their ability to give a good bond the older they become.
01
Excellent shelf life
A strong option for smaller users when the powder adhesive is kept dry and stored in a cool environment.
02
Tough glue line
Useful when the bond needs to be tough and resistant to creep in woodworking applications.
03
Curved panel work
One Shot adhesives are ideal for use with a vacuum bag press where curved panels are being constructed. The glue line is tough enough to keep the curve shape in place.
Best Glue for Gluing Wood to Wood: When to Choose PVA
But that is not to say the PVA’s aren’t as good. In fact, the very opposite. PVA’s are easy to use as the most common grades are single component so no mixing required. They are water based so it is easy to clean down overspill.
Choose PVA when you want a single-component wood adhesive with no mixing required.
Choose PVA when you want a water-based adhesive that is simple to apply and easier to clean down after overspill.
Choose the correct PVA grade when water resistance is an important part of the finished bond performance.
Ureka One Shot and Cascamite-Type Wood Adhesives
Ureka Global have two One Shot or Cascamite type wood adhesives which are the Aerolite UP4145, and the Woodstikk one shot powder adhesive.
One Shot adhesive
Aerolite UP4145 conforms to EN 12765 Class C3, is fast curing and has a long working life.
Powder adhesive
Woodstikk One Shot powder adhesive is another One Shot or Cascamite-type wood adhesive option available from Ureka.
Ureka PVA Wood Adhesives
Ureka’s PVA’s include Woodstikk D3 PVA Wood Glue (a D3 grade woodworking adhesive) and Woodstikk D4 PVA Wood Adhesive (a higher water resistant D4 grade woodworking adhesive).
D3 grade
A D3 grade woodworking adhesive for users who need a ready-to-use PVA wood glue.
D4 grade
A higher water resistant D4 grade woodworking adhesive for applications that need greater water resistance.
So, Should You Use Cascamite or PVA?
If you need a tough, non-creep adhesive for veneering, laminating, joint bonding or vacuum bag press work, a Cascamite or One Shot adhesive is often the better route.
If you need an easy-to-use, single-component, water-based adhesive with simple clean-up, a PVA wood adhesive can be the more convenient option.
The best choice depends on what you are wanting to achieve, how the adhesive will be applied, and what performance you need from the finished bond.
