Solar Cooking
Register
Tag: Source edit
 
(16 intermediate revisions by 3 users not shown)
Line 1: Line 1:
 
{{GoogleTranslateLinks}}
 
{{GoogleTranslateLinks}}
  +
{{Updated|3|17|17}}
 
Below are methods that people have used to make [[cardboard]] solar cookers waterproof :
   
 
== Wax applied during cardboard manufacturing ==
 
Cardboard manufacturers can foil one side of the cardboard and treat the other side with a wax-like waterproof coating during fabrication. It may be necessary to tape the edges of the cardboard with a waterproof tape to stop water from entering into the corrugations.
   
  +
==Nikwax==
Below are methods that people have used to make cardboard solar cookers waterproof :
 
  +
Nikwax is an environmentally safe product that can been applied to any cardboard cooker to increase its durability. [[TchadSolaire]] originally approached Nikwax to use the product with Cookits being used in refugee camps in [[Chad]]. More information about Nikwax and this project can be found on the [https://www.nikwax.com Nikwax website].
   
== Wax applied during cardboard manufacturing ==
 
Cardboard manufacturers can foil one side of the cardboard and treat the other side with a wax-like waterproof coating during fabrication.
 
 
== Paint ==
 
== Paint ==
Tape any open edges with a waterproof tape. Then paint the cooker on the outside using latex paint or any other available paint.
+
Paint the cooker on the outside using latex paint or any other available paint. It may be necessary to tape the edges of the cardboard first with tape to stop water (and paint) from entering into the corrugations.
   
 
==Duct tape==
 
==Duct tape==
Line 14: Line 17:
 
== Wheatpaste and beeswax ==
 
== Wheatpaste and beeswax ==
 
A cardboard cooker can be made water-proof using glue and wax ([[Beeswax|beeswax]] or candle wax):
 
A cardboard cooker can be made water-proof using glue and wax ([[Beeswax|beeswax]] or candle wax):
* Cover the outside of the cooker with pieces of cloth that have been dipped in white glue or [[wheatpaste]]. Make sure the cloth adheres everywhere, applying extra glue to the loose spots. Allow to dry completely.
+
#Cover the outside of the cooker with pieces of cloth that have been dipped in white glue or [[wheatpaste]]. Make sure the cloth adheres everywhere, applying extra glue to the loose spots. Allow to dry completely. For an alternative method that is much less messy and results in a smoother, better appearance, coat the relevant cooker surface with a thick but not dripping layer of white glue (a sponge brush works very well for this). Lay the fabric on the glue and smooth with a pad of paper towel. When fabric is lined up and smoothed out satisfactorily, use the sponge brush to completely cover the fabric with a generous amount of glue, making sure that the fabric is completely saturated with glue. Another layer of glue can be added once the first layer is dry if it needs it.
 
#Rub a generous amount of wax over the entire cloth surface paying special attention to the seams.
*For an alternative method that is much less messy and results in a smoother, better appearance, coat the relevant cooker surface with a thick but not dripping layer of white glue (a sponge brush works very well for this). Lay the fabric on the glue and smooth with a pad of paper towel. When fabric is lined up and smoothed out satisfactorily, use the sponge brush to completely cover the fabric with a generous amount of glue, making sure that the fabric is completely saturated with glue. Another layer of glue can be added once the first layer is dry, if it seems to need it.
 
 
#Heat the cooker near a fire or inside a larger solar cooker or other oven until the wax melts into the cloth. If the weather is warm and sunny, a parked car can also be used to melt the wax into the cloth.
* Rub a generous amount of wax over the entire cloth surface paying special attention to the seams.
 
 
#Repeat steps two and three until you are sure that beeswax has saturated the cloth completely. This process also strengthens a cardboard cooker to a significant degree. Testing is needed to see how these materials hold up over time.
* Heat the cooker near a fire or inside a larger solar cooker or other oven until the wax melts into the cloth. If the weather is warm and sunny, a parked car can also be used to melt the wax into the cloth.
 
* Repeat steps two and three until you are sure that beeswax has saturated the cloth completely. This process also strengthens a cardboard cooker to a significant degree. Testing is needed to see how these materials hold up over time.
 
   
 
==Plastic film==
 
==Plastic film==
Line 24: Line 26:
   
 
==Future possibilities==
 
==Future possibilities==
*[http://www.physorg.com/news184310039.html Spray-on liquid glass is about to revolutionize almost everything] -
+
*[http://www.physorg.com/news184310039.html Spray-on liquid glass is about to revolutionize almost everything]
  +
  +
==See also==
  +
*[[Cardboard]]
  +
  +
==External links==
  +
*{{NewFeb15}} [http://www.papiermache.co.uk/articles/waterproofing-papier-mache/1/ Waterproofing Papier Mache]
  +
*[https://www.nikwax.com Nikwax homepage]
 
[[Category:Materials]]
 
[[Category:Materials]]

Latest revision as of 18:19, 3 April 2023

Searchbox
Last edited: 17 March 2017      

Below are methods that people have used to make cardboard solar cookers waterproof :

Wax applied during cardboard manufacturing[]

Cardboard manufacturers can foil one side of the cardboard and treat the other side with a wax-like waterproof coating during fabrication. It may be necessary to tape the edges of the cardboard with a waterproof tape to stop water from entering into the corrugations.

Nikwax[]

Nikwax is an environmentally safe product that can been applied to any cardboard cooker to increase its durability. TchadSolaire originally approached Nikwax to use the product with Cookits being used in refugee camps in Chad. More information about Nikwax and this project can be found on the Nikwax website.

Paint[]

Paint the cooker on the outside using latex paint or any other available paint. It may be necessary to tape the edges of the cardboard first with tape to stop water (and paint) from entering into the corrugations.

Duct tape[]

Ryerson HVAC insul

The back cardboard panel of this windshield shade cooker is shingled with strips of duct tape to make it waterproof.

Wheatpaste and beeswax[]

A cardboard cooker can be made water-proof using glue and wax (beeswax or candle wax):

  1. Cover the outside of the cooker with pieces of cloth that have been dipped in white glue or wheatpaste. Make sure the cloth adheres everywhere, applying extra glue to the loose spots. Allow to dry completely. For an alternative method that is much less messy and results in a smoother, better appearance, coat the relevant cooker surface with a thick but not dripping layer of white glue (a sponge brush works very well for this). Lay the fabric on the glue and smooth with a pad of paper towel. When fabric is lined up and smoothed out satisfactorily, use the sponge brush to completely cover the fabric with a generous amount of glue, making sure that the fabric is completely saturated with glue. Another layer of glue can be added once the first layer is dry if it needs it.
  2. Rub a generous amount of wax over the entire cloth surface paying special attention to the seams.
  3. Heat the cooker near a fire or inside a larger solar cooker or other oven until the wax melts into the cloth. If the weather is warm and sunny, a parked car can also be used to melt the wax into the cloth.
  4. Repeat steps two and three until you are sure that beeswax has saturated the cloth completely. This process also strengthens a cardboard cooker to a significant degree. Testing is needed to see how these materials hold up over time.

Plastic film[]

Michael Bonke glazing for CooKit, 2-21-12

Michael Bonke has experimented with covering the entire CooKit style cooker with a glazing film.

Future possibilities[]

See also[]

External links[]