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Kynar paint for Barndominiums

Kynar Paint for Barndominiums

Many potential barndominium owners are looking to get the greatest value for their investment and many see this as their ‘forever’ home. If you fall into this category, I would highly recommend exploring Kynar® painted steel.

I could extol aesthetic reasons to use Kynar painted steel for longer than anyone would be willing to listen.
Polyvinylidene fluoride is acknowledged as the premium resin for coil coatings. Popularly known by its original trade name Kynar, PVDF is a kind of fluoropolymer, a family which includes Teflon and Halar. Key to these chemicals’ toughness is the bond between carbon and fluoride, the strongest possible polymeric connection.

PVDF resin has superior chalk resistance and gloss retention, as well as stain and chemical resistance. It is softer than SMPs and polyesters, however, making it highly formable without risk of cracking, but also relatively easy to scratch during transport or installation. PVDF is most durable when it makes up 70 percent of resin; higher concentrations do not coat well, since acrylic is important for dispersion during coating processes.

There are two general classes of pigments. Organic, or carbon-based, pigments are generally synthetic and relatively inexpensive to make. However, organics have fairly weak molecular bonds which are easily broken down by moisture, UV and pollutants, and so, are prone to fading. Inorganic pigments are those which do not contain carbon, and may be naturally occurring or manufactured. They generally offer good fade resistance, with an exception of carbon black. Many simple inorganics are metal oxides, such as widely used iron oxide and titanium dioxide.

Kynar 500/Hylar 5000 systems, which are required to contain 70 percent PVDF, do not vary greatly between manufacturers. Since these paints carry 20- to 30- year warranties which allow for extremely little face, these companies all use ceramics and appropriate inorganic pigments.
One manufacturer we purchase Kynar 500 painted steel from is McElroy Metal. Here is a photo which really shows off performance differences between Kynar and SMP: http://www.mcelroymetal.com/elements/files/Kynar%20500%20VS.%20SP%20Flyer

Sadly, PVDF paints are not available nationwide. Personally – if available where I was planning to build and color choice was other than White, I would make an investment for better paint. I want my building to look as close to new as possible, for as long as I own it!

At NFBA’s (National Frame Building Association) 2019 Expo I cornered Sherwin-William’s representative for further information on Fluropon® (PVDF). Please enjoy this video:

https://drive.google.com/open?id=14fzlL1agiMOZ6Sq67ce6H5JrF9iSc1Kp

This entry was posted in Barndominium, Shouse, Pole Building Comparisons, Pole Barn Planning and tagged , , , , , on by .

No Leak Overhead Door Dog Ears

No Leak Overhead Door Dog Ears
The key to cutting trims for no leak overhead door dog ears for post frame buildings comes from careful cutting and installation of pieces to water flows in front of, rather than getting behind, each piece as it works down the building. It also helps to utilize a trim which covers the jambs and has an integrated J Channel.

Today’s article was prompted by a question posed by reader JOE in TERREBONNE:
“Could you please tell me the process for wrapping the metal trim around overhead doors with diagonal corners so they don’t leak. I’ve heard that using the angled corners will always leak. Any help will be greatly appreciated.”

Mike the Pole Barn Guru Responds:
The following is excerpted from the Hansen Pole Buildings Construction Manual.
All drawings for this depict door opening LEFT side. Mirror image for right side. Drawings are based upon McElroy Metals’ parts (The same process can be used for any manufacturer’s part, provided appropriate adjustments are made for dimensional differences)..

Step #1:

Square cut two P-JFB trim pieces to the measure from 1/4″ above top of concrete slab to 45 degree dog leg bottom and ADD 1-3/8″. See Figure 24-8

Figure 24-8: Overhead Door Flashing Front View

Cut top end as indicated in Figure 24-9 and Figure 24-10 . This becomes Piece C.

Figure 24-9: Overhead Door Flashing Cutting Diagram

Figure 24-10: Nailing Overhead Door Flashing Into Jamb

Install piece C, using joist hanger nails through approximately 2” back face of the “J” portion into the 1-1/2” edge of the jamb. Nails should be close to each end and approximately every 2’ to 3’.

On the wide inside face of the overhead door jamb the trim will fasten when you are ready to install your overhead door weatherseal to the inside face. Nail your weatherseal on with nails every 3′ on center along the entire jamb.

Step #2:

Square cut two P-JFB pieces to 19-3/4″.

Cut one end as shown in
Figure 24-11.

Figure 24-11: P-JFB Piece B Low End

Cut opposite end as shown in Figure 24-12.

Figure 24-12: P-JFB Piece B Installation
Piece B

Install Piece B

Step #3:

(Depending upon door width, this step may require 2 P-JFB pieces.)

Cut each end as shown in Figure 24-13.

Figure 24-13: P-JFB on Dog Eared Door Openings

This entry was posted in Pole Barn Questions, Pole Building How To Guides, Pole Building Doors and tagged , , , , , on by .

Kynar® Paint for pole buildings

Kynar®

One word says it all – Kynar®. I could extol the aesthetic reasons to use Kynar® painted steel for longer than anyone would be willing to listen.

Polyvinylidene fluoride is acknowledged as the premium resin for coil coatings. Popularly known by its original trade name Kynar®, is a PVDF resin-based coating or finish, a family which includes Teflon and Halar. Key to these chemicals’ toughness is the bond between carbon and fluoride, the strongest possible polymeric connection.

PVDF resin has superior chalk resistance and gloss retention, as well as stain and chemical resistance. It is softer than SMPs and polyesters, however, making it highly formable without risk of cracking, but also relatively easy to scratch during transport or installation. PVDF is most durable when it makes up 70 percent of the resin; higher concentrations do not coat well, since the acrylic is important for dispersion during the coating process.

There are two general classes of pigments. Organic, or carbon-based, pigments are generally synthetic and relatively inexpensive to make. However, organics have fairly weak molecular bonds which are easily broken down by moisture, UV and pollutants, and so are prone to fading. Inorganic pigments are those which do not contain carbon, and may be naturally occurring or manufactured. They generally offer good fade resistance, with the exception of carbon black. Many simple inorganics are metal oxides, such as the widely used iron oxide and titanium dioxide.

Kynar PaintKynar® 500/Hylar 5000 systems, which are required to contain 70 percent PVDF, do not vary greatly between manufacturers. Since the paints carry 20- to 30- year warranties which allow for extremely little face, the companies all use ceramics and appropriate inorganic pigments.

One of the manufacturers we purchase Kynar® 500 painted steel from is McElroy Metal. Here is a photo which really shows the performance difference between Kynar® and SMP: https://www.mcelroymetal.com/elements/files/Kynar%20500%20VS.%20SP%20Flyer.pdf

Sadly, PVDF paints are not available nationwide. Personally – if available where I was planning to build and the color choice was other than White, I would spend the money for the better paint. I want my investment to look as close to new as possible, for as long as I own the building!

Kynar 500® is a registered trademark belonging to Arkema Inc

This entry was posted in Steel Roofing & Siding, Building Colors and tagged , , , , , , on by .
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