Which Delrin to use?
Posted: Mon Mar 24, 2008 4:20 pm
Okay, with my new lathe I think I'm ready to try my hand at Delrin, but which one do I use? I have copied and pasted the snippette below from http://www.professionalplastics.com/cgi ... omopolymer
Delrin Exhibits:
Slightly higher tensile & flexular properties than acetal copolymer.
FDA, NSF, USDA & 3A Dairy approved. (in Natural Color)
Weakness: Delrin Homopolymer Acetal is prone to centerline porosity.
For porosity-free acetal sheets & rods, try Acetal Copolymer
Delrin 150 SA natural, standard general purpose, unfilled acetal. This grade has the best impact toughness of all unfilled Delrin products.
Delrin 100 -black this is the black equivalent to the 150 SA. It has the best toughness of any standard acetal. It is also UV stabilized
Delrin 550 SA natural, general purpose, unfilled acetal. This grade has the best machinability of all standard Delrins.
Delrin 507 black, this is the black equivalent to the 550 SA. It has the best machinability of all standard acetal grades. This grade has outstanding UV stabilization, even better than the 100 series black
Delrin 570, this grade has 15% or 20% glass fiber filler. It has much greater mechanical properties over unfilled acetals
I'm assuming the 570 is the best, but I think I may have just found the answer, there is no option when ordering, the natural is the 150 SA. I'm thinking about inquiring with the company about getting some of the 570 or 550 SA, but have went ahead and ordered some of the 150 SA.
Delrin Exhibits:
Slightly higher tensile & flexular properties than acetal copolymer.
FDA, NSF, USDA & 3A Dairy approved. (in Natural Color)
Weakness: Delrin Homopolymer Acetal is prone to centerline porosity.
For porosity-free acetal sheets & rods, try Acetal Copolymer
Delrin 150 SA natural, standard general purpose, unfilled acetal. This grade has the best impact toughness of all unfilled Delrin products.
Delrin 100 -black this is the black equivalent to the 150 SA. It has the best toughness of any standard acetal. It is also UV stabilized
Delrin 550 SA natural, general purpose, unfilled acetal. This grade has the best machinability of all standard Delrins.
Delrin 507 black, this is the black equivalent to the 550 SA. It has the best machinability of all standard acetal grades. This grade has outstanding UV stabilization, even better than the 100 series black
Delrin 570, this grade has 15% or 20% glass fiber filler. It has much greater mechanical properties over unfilled acetals
I'm assuming the 570 is the best, but I think I may have just found the answer, there is no option when ordering, the natural is the 150 SA. I'm thinking about inquiring with the company about getting some of the 570 or 550 SA, but have went ahead and ordered some of the 150 SA.