You are here

Industrial grade ESD mat 60x40cm set for protective soldering - experiences

Hi all,

I have to say that I am very satisfied with my Nescaf filter. For its simplicity
the performance is great and it comes to be my favourable toy.
After bad experiences with esd sensitive parts soldering I decided to solve my ESD protection in the kitchen "lab" a bit better...

I would like to share my experiences with ESD mats for safe, ESD protective
soldering as it can help to others. I looked for long time on the eBay and other shops for possibility to purchase small portable ESD mats including the cables to connect for same el. potential or directly to common ground.

All mats I found were big and expensive or small but expensive or small, not
high quality and expensive etc.

Requested parameters were: two layers, oil, grease and solvent resistant, high temp resistant, acid proof and knife cut proof material.

After long time I returned back to Czech market where I found the company where they has exactly what I looked for but unfortunately the mats are too big. Standard size is 80cm x 160cm for high price dedicated for professional
industrial usage. So I tried to call them and after some negotiation they
promised to cut it for me to preffered size 40x60cm and install the cables and
bananas for ground connection. We also reached after some phone calls and negotiation an excellent price for the complete set.

Parameters:
- thickness: 2mm
- RTG = 10^6 – 10^8

The superior quality R2 Ultra/Antistat ESD mat have two layers; the top one is a blue static dissipative rubber layer laminated to a black conductive rubber bottom layer. Surface resistivity of the top layer is 10^6 – 10^8 and bottom layer is 10^5 – 10^6. This ESD material offers excellent resistance to oil, grease and most common solvent.

These R2 Ultra Mats are very light compared to three layer mats.

After ordering and arrival at home I decided to make several tests:

Several oils, greases and different solvents and mat survived without
any damages.

The flare-up point and it seems to be higher than 1000 C which is
corresponding to almost 2000 F. (I was limited by temp sensors and thermometer over here)

The burning thru temperature and it survived 450 C for 2mins which is
corresponding to 850 F. (I was limited by my soldering station, hi)

The max of the temp without any noticeable damage of the top layer. It
survived 200 C for 2mins which is corresponding to 400 F.

Finaly I tried to cut it using standard knife and make the hole thru using drill
and it proved very high resistance.

All these tests results are so great that I am really happy with this new ESD
mat and I am sure that it will make great job.

RESUME: To get best price from supplier we ordered with local friends higher amount of the sets so I have rest of them available for sale.
If You would like to get this ESD mats also then let me know OFF-LIST to
indians@xsmail.com
I am ready to help You with shipping to you worldwide.

...and one more think

Sorry for a bit longer message and bothering other people but I guess it can
help to many of us with ESD issue and hope it will help to some of You as same  as to me with safe soldering in the kitchen property...

73 - Petr, OK1RP

Comments

Hello all,
thank You very much for Your off-list emails regarding the ESD mats and I decided to share some of ideas over here...

In fact I did not measured surface resistivity of this R2 Ultra ESD mat  for the first time because I had not any appropriate probes available to make serious measurement.

According to Your kind comment in an emails I called to my friend who is working in the industrial corporation and he allowed me to use their professional surface resistivity tester with actual calibration certificate.

Measured in harmony with IEC 61000 standard I tested this ESD mat and with 6cm distance measured the resistivity of 12.1x10^6 Ohms which corresponding to better than 10^7 Ohms. It seems to be perfect result as the suppliers datasheet is talking about the 10^6 to 10^8 Ohms range.

So finally I am really happy with it and hope it really help in order
to protect ESD-sensitive circuits or parts when handling or soldering etc.

73 - Petr, OK1RP

Hello,
after getting few emails regarding the ground connection of the ESD mats in general this part seems to be not enough clear so I decided to share most important think...

Yes, both coiled wires has 1MOhms resistors included so no additional grounding point with resistor needed to limit the current thru body! The ESD mat which I am talking about is following IEC Standard so the limiting current resistors MUST be installed in the h/w! Be carefull if You are buying some extremly cheap mats and check if the cables and wristband has resistors installed!
Mentioned R2 Ultra ESD mat kit is ready to use without any additional h/w. Just put on the table and connect to wristband and common ground. That's it.

73 - Petr, OK1RP

Hi all,

as I received tons of emails regarding the ESD mat and all of them has been sold in short time we ordered next batch. So I would like to inform also over here that ESD mat sets are again available for the same price $25 + $14 s+h worldwide.

73 - Petr, OK1RP

Hi all,

just to let You know FYI, last few ESD mats sets available and no more or others will be arranged...

best regards,

73 - Petr, OK1RP