Any tips you have for 'proper' application? So to be clear you could apply a Wax over the sealant?
Preparation is everything. Make sure the car is as clean as you can get it with the clay bar.
There's then two/three steps to the Acrylic kit (paraphrased from here);
Step 1 – Werkstat Prime Acrylic
Deep cleans the paintwork after claying.
Werkstat Prime Acrylic should be applied to freshly clayed paint. Only 3-4 pea-sized drops of product are required per panel, and these should be wiped in as firmly and evenly as possible to produce a film that should then be allowed to dry for up to 10 minutes. Once hazed over, this film should then be buffed off.
Step 2- Werkstat Acrylic Jett Trigger
The actual sealant part of the process.
Lightly mist Werkstat Acrylic Jett Trigger over a single panel at a time and immediately wipe the panel down to spread a thin, even film of product. Then refold your microfibre and buff the panel down carefully to fully remove the film. I'd recommend between two and five coats of Trigger, the more you apply the better the durability and the deeper the shine.
Step 3 – Werkstat Acrylic Glos
Effectively a QD with a little bit of added LSP, so not an essential step but I'd recommend it anyway as it gives a great finish. Lightly mist a microfibre, wipe over a single panel at a time to spread a thin, even film of product. Refold the microfibre and buff.
Prime allows cleans the paintwork fully to allow the Trigger to bond fully, so if you get this bit right your protection should last a couple of months. It's best to use the Glos after washes to top up the protection - I'd use this instead of a wax if you opt for the Acrylic kit, a wax just won't bond to this so you'll end up literally washing it away.
It depends which sealant you opt for regarding the use of a wax as well. Poorboys EX-P, for example, can be used with a wax on top to give both the finish of a wax and the beading - EX-P tends to sheet water rather than bead, a wax on top of it will give you both the beading and the finish that the wax offers as well as the protection of the sealant underneath.
Just for clarification, yes it's wax over (certain) sealant and a similar preparation routine is required to get similar durability out of EX-P as the Acrylic kit - i.e. wash, clay, prime (I've trialled Dodo Juice Prime Lime for the EX-P), sealant, optional wax.