See purrprop website https://www.purrprop.com/

PurrProp+ is the third generation (now with HLF) and is a two stage coating system for shafts, propellers, rudders etc,

PurrProp+ uses a process named HLF (hydration layer formation) — and is a cutting-edge strategy in marine science. This approach creates a "physical and energetic barrier" that limits marine organisms (like barnacles, algae, and bacteria) from attaching. The first stage is the PurrProp+ Etch Primer. This white or grey coloured, high modulus epoxy based product is designed to etch and adhere tenaciously to the bare metal surfaces being treated. The second stage of the system is the PurrProp+ CLEAR COAT. This product is a silicone based, clear in apearance and has a super slipery surface that will resist plant and marine growth. The total system can be applied by tradesmen and amautures alike.

There are multiple kits sizes ranging from kit #1 (small), Kit #2 (medium), and right through to those kits as used on larger vessels #3 (large)

PurrProp+ is a result of continual refinement and it is now so remarkably different from the original PurrProp, that people are amazed. The Etch Primer is a completely different resin system (it will withstand 98% sulphuric acid, and so no sea water will change its composition). The new chemical formulations bond the Etch Primer and CLEAR COAT, making it almost impossible to separate. And the new CLEAR COAT formulation, is thin, smooth, glossy and hard, to give long life to the application. A quick clean down and an additional coat of CLEAR COAT is all that is needed next time the boat comes out on the hard. PurrProp+ is by far, the most advanced system available, and while the price has been revised, this reflects the extra technology that is incorporated within the product, so that the owner can get a long life from the product.

Separate items are also available.

Complete kit #1 (small) for yachts to 35'

Kit contains: 1 x Surface Cleaner Sachets, 1 x Metal Conditioner Sachet, 1 x 80mL Etch Primer, 1 x 40mL Etch Primer Activator, 1 x 100mL ClearCoat, 2 brushes, microfibre cloth, stirring sticks - Suits Propellors 12" - 24" (30cm - 60cm) or 0.7sq.m (7.5sq.ft)

Complete Kit #2 (medium) for cruisers and trawlers

Kit contains: 2 x Surface Cleaner Sachets, 2 x Metal Conditioner Sachet, 1 x 160mL Etch Primer, 1 x 80mL Etch Primer Activator, 1 x 200mL ClearCoat, 4 brushes, microfibre cloth, stirring sticks - Suits Propellors 24" - 39" (60cm - 99cm) or twin Propellors 12" - 33" (30cm - 83cm) or 1.8sq.m (19.3sq.ft)

Complete Kit #3 (large) for larger cruisers and trawlers

Kit contains: 4 x Surface Cleaner Sachets, 4 x Metal Conditioner Sachet, 2 x 160mL Etch Primer, 2 x 80mL Etch Primer Activator, 2 x 200mL ClearCoat, 6 brushes, microfibre cloth, stirring sticks. Large kits are supplied in 2 individual boxes - Suits 2 x 48 inch (120cm) Propellers plus Running Gear, 3.6sq.mtr (38.6sq.ft)

SDS's for components