Monthly Archives: October 2014

Painting an Aluminum Hull with Non Antifouling Paint

When painting a boat used for hunting/fishing, such as a jon boat, typically a flat finish is desired so you’ll want to use one of our camouflage paints. A primer coat is used to help the paint adhere to the aluminum surface and provides an extra layer of protection from corrosion. Or use or Aluma Hawk that is a paint and primer in one.

Duralux Aerosol Camouflage KitWhen using the Camouflage Paint Spray Kit or Duralux Camouflage Paint on bare aluminum apply two coats of Duralux Zinc Chromate after sanding. If using the Aluminum Boat Paint Green or Aluma Hawk (available in Black, Jon Boat Green, Blue, Sand or Aluminum Grey), these serve as paint and primer in one. For more application details see our ‘how to paint an aluminum jon boat’ article. This should be used when you desire a dull flat finish.

Duralux Marine EnamelIf you desire a gloss finish, look to the Duralux Marine Enamel or Super Marine paints for other options. Duralux High Gloss Marine Enamel is affordable, easy to apply and only recommended for above the waterline or moderate use on the bottom (a day or so in the water, not extended periods). This topside paint works best in very thin coats; see the prep recommendations found on product page on “how to use” tab. For aluminum application apply one coat of Duralux Zinc Chromate M739, Top with two full coats of Duralux Marine Enamel. The enamel works well thinned with M650 by Duralux.

Revolution Marine PaintYou also have a choice from Blue Water Marine Paints that can be used above or below the waterline and come in a few different styles.  The Revolution  is a great option if you want to brush or roll the paint.  It is easy to work with, holds its color well, and outshines some more expensive coatings. Another option, Supreme Urethane, is super durable and will endure the toughest of conditions. Both of these paints are also available in your choice of sheen: satin or gloss. Click on “view more” for the paint and use the Specification and How To Use tabs for detailed instructions, coverage and preparation on any of the product pages. For aluminum application see details on each product page but it is a two-step primer process. When priming aluminum use either Blue Water Marine Etching Primer (SM 664D) or TS-780 Mono Epoxy Primer.

You have many options when painting aluminum. Your use of the boat, allotted budget, and amount of time you want to spend on the project may help determine the right paint for you. For more information see our ‘topside boat paint options’.

West System to Hawk Epoxy Cross Reference Guide

Hawk EpoxyBelow shows the comparison of the West System products to the Hawk Epoxy products. Hawk Epoxy is comparable to the West System with how it works and its uses. West System is known for A/B/C/D selection system size (Size A resin with Size A hardener) the Hawk Epoxy uses 1/2/3/4 (Size 1 resin with Size 1 catalyst). The pumps are sold separate with West System and Hawk Epoxy, this works where 1 pump of resin is mixed with 1 pump of catalyst, or more depending on instructions. West SystemThis is just to make it easier and less chance for error for the customer and it doesn’t mean a 1 to 1 ratio because the pumps are calibrated differently and each pump size can distribute different amounts.

Please Note: This chart simply shows the likely equivalent product by brand. It is not recommended to mix the products brands.

CLICK HERE: West System to Hawk Epoxy Cross Reference Guide.

West System and Hawk Epoxy are trade marks of Gougeon Brothers, and New Nautical Coatings, respectively.

Paint Options for Pool Decks

Many people choose to paint a pool deck to customize the decor and revive a dated look and renew a concrete deck aged by weather and wear. Unpainted concrete can become slippery and may need to be sealed.

The most popular pool deck coating we offer is Deck Kote.  Deck Kote a one-part acrylic water-based pool deck coating designed as an effective weapon against UV rays and weathering in a coating that is easy to apply and clean up. Longest lasting protection against fade on painted or unpainted concrete surfaces. Dries quickly, durable, and resists fading, chemicals, and abrasion. For non-skid surfaces, add sand or pumice stone or Polymetric Non-Skid as desired. Cleans up with soap and water. Designed for maximum protection against algae, UV rays and chlorine.

The Supreme Acrylic Urethane is a super-duty commercial quality two-component acrylic polyurethane pool paint that performs well. Will not pick up to hot tires when applied to pool decks and covers up to 300 square feet per gallon while available in 100 colors.

Seal It  (Deep Penetrating Sealer) treats concrete, plaster, gunnite, marcite, tile and masonry three ways; it permanently seals out water, densifies and hardens it all at once.

For a non skid pool deck area, Pro-Tex texture additive can be added to the Supreme Acrylic Urethane. Use it to improve slip resistance or simply to add decorative texture to any finish. Stays suspended better than aggregates, resulting in a more even finish and improves safety.

Paints are available with non skid aggregate pre mixed in the paint for ease. An example of this is the Supermarine non-skid paint  called Floor Grip, or Floor Grip II for wood. The supermarine paint is an easy paint to apply, especially for the “do it yourselfer”. For best results you will want to remove any of the existing paint on the surface with sand paper followed by a good pressure washing. This removes any grit or oil that may interfere with the adhesion of coats of non-skid paint you will be applying.

* Be sure to check if a primer, sealer or other products are suggested for your surface preparation in our ‘how to use’ information located on each product page.

Hawk Epoxy System

How do I choose Hawk Epoxy Catalyst and Fillers?

R1 Epoxy Resin – a smooth, low-viscosity liquid epoxy resin. With a variety of Hawk Epoxy Catalysts, it can be cured under a wide range of temperatures and environmental conditions to form a high strength plastic with superior moisture barrier characteristics. Hawk Epoxy is available in four system sizes color coded on each label. Note: Mix ratios vary by catalyst. For optimal product utilization, be sure to choose the same Size for both the resin and catalyst. I.e Size 1 Resin with Size 1 Catalyst.

ChooseCatalyst

C1 ULTRA SLOW CURE CATALYST: Designed for use with HAWK EPOXY R1 Resin for construction and repairs with superior adhesion, strength, bonding, filling, and moisture barrier qualities at higher temperatures and for an ultra slow cure. Do not use under Sea Hawk marine wood varnish.

C2 SLOW CURE CATALYST: Designed for use with HAWK EPOXY R1 Resin for construction and repairs with superior adhesion, strength, bonding, filling, and moisture barrier qualities at higher temperatures and for a slow cure. Do not use under Sea Hawk marine wood varnish.

C3 FAST CURE CATALYST: Designed for use with HAWK EPOXY R1 Resin for construction and repairs with superior adhesion, strength, bonding, filling, and moisture barrier qualities at cooler temperatures and for a fast cure. Do not use under Sea Hawk marine wood varnish.

C5 CLEAR FINISH CATALYST: Designed  for use with HAWK EPOXY R1 Resin for very clear fiberglass cloth and coating applications with exceptional moisture barrier characteristics. Perfect for natural wood and carbon fiber clear coats with no blush. Longer working times in very warm temperatures. May be used under Sea Hawk marine wood varnish.

TIP* For easy accurate measuring be sure to use the Hawk Epoxy Pumps that are calibrated to dispense the correct amount of resin and catalyst. This is much easier and leave little room for mistakes.

Next choose the best Hawk Epoxy Filler depending on the application:


Choose Hawk Epoxy FIller

F1 High Load Adhesive Fiber Filler – Thickens to a light grey color creating an easy to use adhesive designed for bonding hardware and other applications with dissimilar materials. This mixture will maximize bond strength for anticipated high loads.

F2 Structural Adhesive Filler – Thickens to an off white color, creating a general purpose thickening additive for bonding, gap filling and filleting. Mix to a workable consistency allowing sag-free and easy flow properties for vertical and overhead applications.

F-3 Light Density Adhesive Micro Fiber Filler – Thickens to an off white color. Great for bonding many substrates, especially wood. The mixture also creates a multipurpose adhesive for many other substrates in addition to providing excellent substrate wetting and penetrating characteristics. Increases impact and abrasion resistance.

F4 Bridging Adhesive Filler – Thickens to a brown color, creating an easy to use adhesive with excellent gap filling and filleting qualities. This mixture blends with many different types of wood to allow for a natural looking fillet or gap fill.

F5 Light Density Fairing Filler – Thickens to a reddish brown color, achieving an easy to sand and carve fairing compound while still remaining strong and light weight.

F6 MicroSphere Fairing Filler – Thickens to a white color, creating a lightweight fairing compound for small to large areas. This product holds a feathered edge very well and is suitable for nearly every substrate. This closed celled structure can also be used for increased acoustic and thermal insulation.

For the easiest way to choose your system, view our Hawk Epoxy Size 1 Kit

Aluminum Hull Repairs and More

jonboatHow to Fix a Leaking Seam or Rivet on Aluminum Boat

As aluminum boats age they show various signs of wear and tear. One of these signs may be a leaking seam or rivet. Over time, rivets can stretched and loosen, causing a gap in the hull integrity and this results in a leak. The solution to this problem is fairly simple and may be fixed at home using just a few tools and know-how. So, how should this problem be addressed?

Locate the Leaking Rivet or Seam

The first step is to find the exact seam or rivet that needs repair. To do this, put the boat in water and observe carefully. You could also put water inside the boat and see where it allows the water to escape from.

Assess the Damage

The second step is assessing the extent of damage to the rivet or seam. If the seam is too wide to be filled or caulked, it will need additional rivets in combination with a sealant product. If the damage is easily visible a sealant or caulk will be sufficient.

Choose a Sealant or Epoxy Product

There are hundreds of products out there that claim to fix leaks and seal cracks. How do you know which to choose? The Bottom Paint Store has done most of the hard work for you and can confidently recommend 3 products that really work.

Hawk Epoxy KitHawk Epoxy is an excellent product to repair aluminum hulls. We recommend getting one of the Hawk Epoxy Kits that will contain everything you need for filling in the aluminum. Hawk Epoxy is a versatile product that can be used for many other application too. Everyone should own this kit!

The second is BoatLife’s LifeCalk Sealant. This sealant may take a long time to cure (1 to 3 days), but it results in a waterproof, rubber seal that will adhere to almost anything. It can also be applied underwater for emergency repairs!

The third option is G/Flex 650 Epoxy made by West System. This liquid epoxy is more flexible and versatile than regular epoxies and will adhere to almost any surface. The bond that it creates can absorb shock, vibration, expansions and contractions. It will fully cure in 24 hours. Also, West System has created a detailed and comprehensive set of instructions for a wide variety of applications. They can be found at this link and below:

G Flex Epoxy by West SystemFix leaking seams and rivets

Patch holes in aluminum hulls

Repair pitted or pin holed surfaces

If your hull is bare aluminum you can cover the entire surface with a high build epoxy primer to help seal and protect it such as Tuff Stuff. For application details see our link for application of a marine epoxy.

Now that your leaky rivets and seams have been repaired, you are ready to paint! Check out this How To Article for more information on how to paint your aluminum vessel.