Sealer Polyurethane, Clear 5L
The polyurethane primer is used to seal the pore and is the very first coat you want to pass on your guitar kit for a good finishing (unless you have decided to use grain filler: see grain filler section). The clear sealer offers a high transparency and is well indicated for natural finishing:
- before passing colour lacquer such as amber or butterscotch,
- with dye/tint in which case we advise to stain first and then seal. With dye, we also prefer to use waterbase sealer instead of polyurehtane,
- to seal the wood before passing your top coat such as varnish clear lacquer or shellac . This way you will get a proper natural finishing of your electric guitar.
The natural colour of wood and the wood mesh will be preserved and its grains revitalised. Also, the typical veiled blue of polyurethanes does not appear when several layers are applied.
POLYURETHANE SEALER COMPATIBILITY WITH OUR GUITAR FINISHING PRODUCTS.
The polyurethane primer is compatible with all our polyurethane products: polyurethane lacquers, polyurethane varnish as well as our grain filler and our polish pastes.
POLYURETHANE SEALER PREPARATION AND APPLICATION.
You will need to mix the polyurethane sealer with the provided hardener with a mixing ratio of 2:1. When the mixture is done, it has a lifetime of 2hrs to apply it before it becomes hard. Apply thin layer to avoid any drip and get a homogeneous distribution and wait between 8 to 12 hours between coats. It is advised to sand slightly before putting the next coat to ensure that new coat will attached well. Note that Polyurethane is toxic (still less compared to nitrocellulose chemical compound) and need protection during the finishing step of your guitar kit build: google, mask and gloves available on our website.
Also if you want to spray the sealer – which we strongly advice – and you don't have the material and don't want to invest in a spray gun, The Guitar Kit Fabric proposes the rechargeable spray preval product. With this item you can add the polyurethane sealer with half of hardener, mix it and then spray it on your guitar body. The preval spray will allow a good spraying of the sealer and can spray up to 500mL before needed to be recharged.Further instruction will be provided along with your order.