Possible encapsulation material?

**Alan** · 05-12-2011, 08:59 PM

epic resin.

epic resin d9940 is pretty good just made a sample hockey puck sized piece for testing. you can bend it in your hands, but it is not rubbery/bouncy like silicone is, more like a semi hard plastic. got if off ebay.

**Plinkomax** · 05-18-2011, 11:51 PM

Silicone

Hey guys,

The amount of information on this forum has prompted me to register rather then lurk.

Any thoughts on DAP titanium silicone?

http://www.dap.com/docs/tech/00078670K.pdf

This seems to be similar to a platinum based silicone that someone was talking about earlier.

The important aspect is that it wont corrode metal.

My plan would be to cut it with paint thinner (mineral spirits) so it could be poured into the frame.

**Mike90250** · 05-19-2011, 04:19 PM

Any thoughts on DAP titanium silicone?

From their data sheet

Discoloration may occur with copper and its alloys; try a test area before using.

Not recommended on surfaces that might bleed oils, plasticizers, or solvents. Best adhesion and
compatibility are not achieved with substrates made of methylmethacrylate, polycarbonate, polypropylene,

Not recommended for use underwater or below grade

It provides a long-lasting, flexible and watertight seal.

Watertight is not water vapor proof. I'd try it on a small part, abuse it, and then see what happens.

**Plinkomax** · 05-20-2011, 12:18 AM

I had difficulty finding DAP titanium but it looks like GE Silicone 2 eaves troughs mix has similar properties.

The curing agent in this case is methanol and ammonia, which is nice because mineral spirits is ethanol and methanol based. Should reduce the toxic gas.

This could cause problems with plastic front covers but I will be testing some out this weekend.

**Alan** · 05-20-2011, 10:54 PM

@ $6 per 10oz tube why bother? you can get "real" encapsulants for the same price NT

@ $6 per 10oz tube why bother? you can get "real" encapsulants for the same price NT

**Plinkomax** · 05-20-2011, 11:51 PM

The silicone works out to about $21 per kg

Please point me in the right direction.

**RJMcSherry** · 05-27-2011, 02:26 PM

Mixing by hand?

Originally posted by Alan

epic resin d9940 is pretty good just made a sample hockey puck sized piece for testing. you can bend it in your hands, but it is not rubbery/bouncy like silicone is, more like a semi hard plastic. got if off ebay.

How easily was it to mix the D9940 by hand? Were there a lot of air bubbles trapped in the resin?

Has anyone used the D9940 on a panel and have had successful results?

**Alan** · 05-29-2011, 02:41 PM

"The silicone works out to about $21 per kg

Please point me in the right direction. "

search ebay for solar encapsulant d9940 or if you want to spend more dow 6010 those are the cheapest two solutions.

the d9940 has bubbles in it, but they are much easier to get out than the sylgard. Will you have a panel with zero bubbles? probably not, .....Will it still work great, sure.

**jeanlafete** · 08-19-2011, 03:16 AM

Encapsulant Imported

Has anyone ordered any of this encapsulant? The price is great, but the shipping is a killer unless a group went in together and ordered it.
Just looking around and found it....... Thanks

15 Liters comes out to about $50 a liter.

http://www.aliexpress.com/store/104108/210248460-359001497/liquid-silicone-for-solar-bond-encapsulating-material.html

**Mike90250** · 08-19-2011, 10:28 AM

You need to find out what the cure method is. It appears to be 1 part, with moisture cure. Is it chemically neutral (acetone), which is safe to use on electrical parts, or is it an acetic acid cure ? (both are humidity activated).

**RJMcSherry** · 08-30-2011, 12:33 PM

List of possible encapsulants

*EpicResins D9940*

Solar Panel Bonding Adhesives | Photovoltaic Cell Manufacturing | Aliphatic Polyurethane Compound Sealants | Epic Resins - Manufacturer of Epoxy Resins and Polyurethane Compounds

http://www.epicresins.com/solarPower-Bonding.asp

Solar panel bonding adhesives for photovoltaic cell manufacturing eliminate the need for mechanical fasteners. Epic Resins has a huge array of adhesives for use in the renewable energy electronics industry, and can formulate custom blends for any application.

http://view.vcab.com/?vcabid=eaaSppgnScprlle&count=29/04/2011%2016:05:59-2

*DOW6100*

Error Page 404

http://www.dowcorning.com/applications/search/default.aspx?R=8095EN

*DOW6010*

Error Page 404

http://www.dowcorning.com/applications/search/default.aspx?R=6245EN

*Sylgard 184*

Error Page 404

http://www.dowcorning.com/applications/search/default.aspx?R=131EN

*Solar-Tite 384*
Have yet to find the actual datasheet for this product, but there a lot of reviews for this floating around the internet and it is readily available from ebay

*Elastosil 2202*

Page Not Found - Wacker Chemie AG

http://www.wacker.com/cms/en/products-markets/products/product.jsp?product=11344

*Cell Guard*
Once again, can't find a data sheet for this. But it is a product of ML SOLAR and can be found on ebay

*QSil 216*

CHT Silicones manufacture silicone materials

http://www.quantumsilicones.com/PDFs/data/QSil%20216%20Data%20Sheet.pdf

CHT manufactures high quality silicone products, including silicone adhesives, encapsulants, gels, greases, moulding rubbers and fluids, for applications such as electronics, aerospace, automotive, food processing, construction and water treatment. View products & applications, use our product selector and request samples.

*OptiTec 7020*

Opti-tec 7020 Optically Clear Silicone Potting Compound

http://www.intertronics.co.uk/products/opt7020.htm

Opti-tec 7020 clear silicone potting compound is a silicone elastomer which will cure at room temperature or can be accelerated at elevated temperatures.

*GE RTV 615*

Page not found - DCP Silicone Solutions

http://www.dcproducts.com.au/RTV_Silicone_Solutions/Tech_Data_Sheets/RTV615-tds.pdf

**jimbo100** · 10-10-2011, 10:24 AM

Great information guys

This thread has been a great help! I am a new member here and this site is just what I have been looking for. I have just recently purchased 1KW of 6X6 .5V 8AMP + cells and am in the process of building my panels. I will try to document my progress to post here! Thank you very much for your help.

Thanks
jimbo100

**superduperenergydude** · 10-11-2011, 09:24 AM

waste of time.

do yourself a favor and return the cells or resell them.
you can buy panels without the frame for 59 cents a watt it will cost you over $1 per watt for just the materials with labor probably over $1.50 a watt.

Possible encapsulation material?

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