Reviews by our members

• 5

  nantoniadis

  2024-12-10

  Verified purchase

  I got it because of the very good reviews I read. It looks good. I just added liquid to the solar.

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• 2

  14 out of 15 members found this review helpful

  arel

  2022-05-21

  Verified purchase

  Felder Lottechnik antifreeze 1lt purchase 9 packages x €3.50 liquid color blue.
  the cap (with a little effort) unscrews without breaking the plastic safety ring of the package.
  with dubious composition of propylene glycol (colorless liquid, with a thick and sticky texture) I opened 4 packages, all incomplete, ranging from 915ml to 925ml, they do not have the thick texture like the previous pink antifreezes I had, but are watery, they are already diluted, unknown with what and in what proportions are not mentioned.
  I mixed 1 liter with 1 liter of commercial deionized water, I did not have rainwater or air conditioning water, measurement indication -22°C
  I put it to use, solar & antifreezes perform as they should.
  I have reservations and doubts about the product, however, there is no mention as an image on Google search for this specific Felder Frostschutzflüssigkeit (Felder antifreeze protection liquid)
  the brand Felder Lottechnik represents products for industrial cold and hot welding.

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• 5

  3 out of 6 members found this review helpful

  bill_fotopulos

  2021-04-20

  German Quality, top coolant for closed circuits, I have been using it for years in solar water heaters. Top choice for closed circuit solar water heaters!

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• 1

  9 out of 10 members found this review helpful

  foudou80

  2020-12-31

  I have noticed that whenever I have used it in heating installations, after a year, all the cables started to lose. In solar ones, I had no problem.

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• 5

  Blizzard

  2025-01-11

  Verified purchase

  It looks good, be careful with the small 1lt bottles, if they are not upright during storage they will leak

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  • Value for money
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• 5

  0 out of 2 members found this review helpful

  Panagiotis_Markoytsas

  2022-01-04

  Verified purchase

  Top quality, extremely impressive results

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• 5

  n.fourn

  2024-12-04

  Verified purchase

• 5

  Kirk81

  2024-12-02

  Verified purchase

• 5

  GYY1314

  2024-11-20

  Verified purchase

• 5

  dimitris_geranastasis

  2024-11-14

  Verified purchase

• 5

  PNChatzakis

  2024-11-04

  Verified purchase

• 3

  ptsak

  2024-11-03

  Verified purchase

  • Value for money

  • Quality
  • Effectiveness
• 5

  Andrew V

  2024-10-29

  Verified purchase

• 5

  Ice Cold

  2024-10-27

  Verified purchase

• 4

  Panos_Panosior

  2024-09-29

  Verified purchase

• 5

  mimisb13

  2024-05-28

  Verified purchase

• 5

  panmar32

  2024-02-27

  Verified purchase

  • Value for money
  • Quality
  • Effectiveness
• 5

  Sofi_Tsalk

  2022-10-05

  Verified purchase

  • Value for money
  • Quality
  • Effectiveness
• 5

  spapioan2

  2022-06-21

  Verified purchase

  • Value for money
  • Quality
  • Effectiveness