What was the growth rate in Electronics in the second quarter 
home-driven laptops, computing, cloud services, all of that drives demand. And even though the smartphone cycle moved by a quarter, and as you know that one of the key OEMs moved their cycle to fourth quarter and ending the cycle in the first quarter, we continue to see good growth rates and good demand in China. So all in all, it's a broad-based growth, which we benefited in the second quarter.
Geoff Wild -- Chief Executive Officer
I'd only add to that, I think we're seeing good drivers on 5G penetration, starting millimeter wave penetration. You've seen upgrades by some of the major smartphone manufacturers in their outlook, which has come through into the supply chain, which has given us better growth than expected and a better outlook as well for the second half than we expected ahead of their anticipated launch for the first quarter of next year.
Arun Viswanathan -- RBC Capital Markets -- Analyst
Great. Thanks. And then just also just wanted to get your thoughts on the equipment business. It's somewhat unique to you guys.
Are you seeing more orders there? And does that give you visibility into next year as well?
Geoff Wild -- Chief Executive Officer
Yes. Still strong on equipment. Our factories are pretty much fully loaded now. We're dealing with some supply chain stock shortages as well on some components and I think managing that quite nicely.
Our factories in both Germany and China are pretty much full up and we've got a good order book and visibility out, I think, to the second half -- to the first -- the end of the first half of next year. So it's mostly driven in by Electronics, mostly then driven by semiconductor packaging and HDI. But we are starting to see some interesting inquiries as well for the GMF business, which we believe should recover next year as well.
Operator
Thank you. Our next question comes from David Begleiter with Deutsche Bank. Your line is open. 
David Begleiter -- Deutsche Bank -- Analyst
Thanks. Good morning, Geoff and Peter. Just looking at Q4 guidance, can you comment on the somewhat wide range? And it looks like at the low end it could be down year over year. What factors would cause Q4 to be down year over year? Thank you. 
Peter Frauenknecht -- Chief Financial Officer
Yes. I think we have a pretty good visibility for the third quarter. And there are various factors driving the fourth quarter market trends. And if you look at market estimations and the key marketing firms, they see a probably rather stable or slightly declining market for the automotive market in the fourth quarter.
We believe that we outperform the market, but still the fourth quarter 2020 was a very strong automotive quarter where we are not sure, with the supply chain shortages, how the trend is going to be. On the Electronics side, we continue, despite the fact that, as I said, one of the key top OEMs started their smartphone cycle in the fourth quarter, we continue to see strong demand. We continue to see growth in Electronics again. But the comps are getting a lot more difficult, with the automotive market returns in the fourth quarter 2020.
And also the Electronics, particularly the smartphone market, performing very, very well in the fourth quarter last year. So again, we see that we definitely perform at that level, but the growth rates are dependent on various factors, and that's what we put into our focus.
David Begleiter -- Deutsche Bank -- Analyst
And just commenting on the first half of the quarter right now, are you ahead or in line or behind your forecast for top line and EBITDA growth for Q3?
Peter Frauenknecht -- Chief Financial Officer
Well, as I guided here, you saw that we improved our guidance for the full year. So what we mentioned over the last calls as well, we were quite cautious going into the year. We see a strong confirmation of our growth trends. We see a strong confirmation of our project wins.
And with that, we were able just to increase the guidance for the full year and we were able just to increase our guidance for organic chemistry growth rate as well as equipment growth rate. So 
home-driven laptops, computing, cloud services, all of that drives demand. And even though the smartphone cycle moved by a quarter, and as you know that one of the key OEMs moved their cycle to fourth quarter and ending the cycle in the first quarter, we continue to see good growth rates and good demand in China. So all in all, it's a broad-based growth, which we benefited in the second quarter.
Geoff Wild -- Chief Executive Officer
I'd only add to that, I think we're seeing good drivers on 5G penetration, starting millimeter wave penetration. You've seen upgrades by some of the major smartphone manufacturers in their outlook, which has come through into the supply chain, which has given us better growth than expected and a better outlook as well for the second half than we expected ahead of their anticipated launch for the first quarter of next year.
Arun Viswanathan -- RBC Capital Markets -- Analyst
Great. Thanks. And then just also just wanted to get your thoughts on the equipment business. It's somewhat unique to you guys.
Are you seeing more orders there? And does that give you visibility into next year as well?
Geoff Wild -- Chief Executive Officer
Yes. Still strong on equipment. Our factories are pretty much fully loaded now. We're dealing with some supply chain stock shortages as well on some components and I think managing that quite nicely.
Our factories in both Germany and China are pretty much full up and we've got a good order book and visibility out, I think, to the second half -- to the first -- the end of the first half of next year. So it's mostly driven in by Electronics, mostly then driven by semiconductor packaging and HDI. But we are starting to see some interesting inquiries as well for the GMF business, which we believe should recover next year as well.
Operator
Thank you. Our next question comes from David Begleiter with Deutsche Bank. Your line is open. 
David Begleiter -- Deutsche Bank -- Analyst
Thanks. Good morning, Geoff and Peter. Just looking at Q4 guidance, can you comment on the somewhat wide range? And it looks like at the low end it could be down year over year. What factors would cause Q4 to be down year over year? Thank you. 
Peter Frauenknecht -- Chief Financial Officer
 Yes. I think we have a pretty good visibility for the third quarter. And there are various factors driving the fourth quarter market trends. And if you look at market estimations and the key marketing firms, they see a probably rather stable or slightly declining market for the automotive market in the fourth quarter.
We believe that we outperform the market, but still the fourth quarter 2020 was a very strong automotive quarter where we are not sure, with the supply chain shortages, how the trend is going to be. On the Electronics side, we continue, despite the fact that, as I said, one of the key top OEMs started their smartphone cycle in the fourth quarter, we continue to see strong demand. We continue to see growth in Electronics again. But the comps are getting a lot more difficult, with the automotive market returns in the fourth quarter 2020.
And also the Electronics, particularly the smartphone market, performing very, very well in the fourth quarter last year. So again, we see that we definitely perform at that level, but the growth rates are dependent on various factors, and that's what we put into our focus.
David Begleiter -- Deutsche Bank -- Analyst
And just commenting on the first half of the quarter right now, are you ahead or in line or behind your forecast for top line and EBITDA growth for Q3?
Peter Frauenknecht -- Chief Financial Officer
Well, as I guided here, you saw that we improved our guidance for the full year. So what we mentioned over the last calls as well, we were quite cautious going into the year. We see a strong confirmation of our growth trends. We see a strong confirmation of our project wins.
And with that, we were able just to increase the guidance for the full year and we were able just to increase our guidance for organic chemistry growth rate as well as equipment growth rate. So 